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4441980 = 2235101733
BaseRepresentation
bin10000111100011101111100
322100200020210
4100330131330
52114120410
6235112420
752520244
oct20743574
98320223
104441980
112564364
1215a2710
13bc6aba
14838b24
155cb220
hex43c77c

4441980 has 48 divisors (see below), whose sum is σ = 12577824. Its totient is φ = 1171200.

The previous prime is 4441979. The next prime is 4441999. The reversal of 4441980 is 891444.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5694 + ... + 6426.

It is an arithmetic number, because the mean of its divisors is an integer number (262038).

Almost surely, 24441980 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 4441980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6288912).

4441980 is an abundant number, since it is smaller than the sum of its proper divisors (8135844).

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

4441980 is a wasteful number, since it uses less digits than its factorization.

4441980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 4441980 is about 2107.6005314101. The cubic root of 4441980 is about 164.3837434568.

It can be divided in two parts, 44 and 41980, that added together give a palindrome (42024).

The spelling of 4441980 in words is "four million, four hundred forty-one thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 101 202 303 404 505 606 733 1010 1212 1466 1515 2020 2199 2932 3030 3665 4398 6060 7330 8796 10995 14660 21990 43980 74033 148066 222099 296132 370165 444198 740330 888396 1110495 1480660 2220990 4441980