44645920 has 48 divisors (see below), whose sum is σ = 115069248. Its totient is φ = 16234240.

The previous prime is 44645897. The next prime is 44645929. The reversal of 44645920 is 2954644.

It is not an unprimeable number, because it can be changed into a prime (44645929) 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 7 ways as a sum of consecutive naturals, for example, 10924 + ... + 14443.

It is an arithmetic number, because the mean of its divisors is an integer number (2397276).

Almost surely, 2^44645920 is an apocalyptic number.

44645920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44645920 is an abundant number, since it is smaller than the sum of its proper divisors (70423328).

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

44645920 is a wasteful number, since it uses less digits than its factorization.

44645920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25393 (or 25385 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 44645920 is about 6681.7602471205. The cubic root of 44645920 is about 354.7539656082.

The spelling of 44645920 in words is "forty-four million, six hundred forty-five thousand, nine hundred twenty".