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444024420 = 223573728573
BaseRepresentation
bin11010011101110…
…100011001100100
31010221111202222220
4122131310121210
51402132240140
6112020552340
714001100560
oct3235643144
91127452886
10444024420
11208705134
121048526b0
1370cb6b58
1442d846a0
1528eacbd0
hex1a774664

444024420 has 96 divisors (see below), whose sum is σ = 1459331328. Its totient is φ = 98744832.

The previous prime is 444024419. The next prime is 444024421. The reversal of 444024420 is 24420444.

It is an interprime number because it is at equal distance from previous prime (444024419) and next prime (444024421).

It is not an unprimeable number, because it can be changed into a prime (444024421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1254 + ... + 29826.

It is an arithmetic number, because the mean of its divisors is an integer number (15201368).

Almost surely, 2444024420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444024420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (729665664).

444024420 is an abundant number, since it is smaller than the sum of its proper divisors (1015306908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444024420 is a wasteful number, since it uses less digits than its factorization.

444024420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28629 (or 28627 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 444024420 is about 21071.8869586945. The cubic root of 444024420 is about 762.9023486156.

Adding to 444024420 its reverse (24420444), we get a palindrome (468444864).

It can be divided in two parts, 444024 and 420, that added together give a palindrome (444444).

The spelling of 444024420 in words is "four hundred forty-four million, twenty-four thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 37 42 60 70 74 84 105 111 140 148 185 210 222 259 370 420 444 518 555 740 777 1036 1110 1295 1554 2220 2590 3108 3885 5180 7770 15540 28573 57146 85719 114292 142865 171438 200011 285730 342876 400022 428595 571460 600033 800044 857190 1000055 1057201 1200066 1714380 2000110 2114402 2400132 3000165 3171603 4000220 4228804 5286005 6000330 6343206 7400407 10572010 12000660 12686412 14800814 15858015 21144020 22201221 29601628 31716030 37002035 44402442 63432060 74004070 88804884 111006105 148008140 222012210 444024420