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44200420 = 22511316481
BaseRepresentation
bin1010100010011…
…1000111100100
310002011121120121
42220213013210
542303403140
64215211324
71044461125
oct250470744
9102147517
1044200420
1122a4a480
1212976b44
1392076c4
145c2804c
153d3164a
hex2a271e4

44200420 has 48 divisors (see below), whose sum is σ = 104541696. Its totient is φ = 15552000.

The previous prime is 44200397. The next prime is 44200423. The reversal of 44200420 is 2400244.

It is a junction number, because it is equal to n+sod(n) for n = 44200394 and 44200403.

It is not an unprimeable number, because it can be changed into a prime (44200423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3580 + ... + 10060.

It is an arithmetic number, because the mean of its divisors is an integer number (2177952).

Almost surely, 244200420 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 44200420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52270848).

44200420 is an abundant number, since it is smaller than the sum of its proper divisors (60341276).

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

44200420 is a wasteful number, since it uses less digits than its factorization.

44200420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6532 (or 6530 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 44200420 is about 6648.3396423468. The cubic root of 44200420 is about 353.5700462775.

Adding to 44200420 its reverse (2400244), we get a palindrome (46600664).

The spelling of 44200420 in words is "forty-four million, two hundred thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 31 44 55 62 110 124 155 220 310 341 620 682 1364 1705 3410 6481 6820 12962 25924 32405 64810 71291 129620 142582 200911 285164 356455 401822 712910 803644 1004555 1425820 2009110 2210021 4018220 4420042 8840084 11050105 22100210 44200420