44642920 has 48 divisors (see below), whose sum is σ = 116851140. Its totient is φ = 15305472.

The previous prime is 44642893. The next prime is 44642921. The reversal of 44642920 is 2924644.

It can be written as a sum of positive squares in 2 ways, for example, as 43480836 + 1162084 = 6594^2 + 1078^2 .

It is a super-2 number, since 2×44642920² = 3985980612252800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44642921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9429 + ... + 13348.

Almost surely, 2^44642920 is an apocalyptic number.

44642920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44642920 is an abundant number, since it is smaller than the sum of its proper divisors (72208220).

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

44642920 is a wasteful number, since it uses less digits than its factorization.

44642920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22802 (or 22791 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 44642920 is about 6681.5357516068. The cubic root of 44642920 is about 354.7460194866.

The spelling of 44642920 in words is "forty-four million, six hundred forty-two thousand, nine hundred twenty".