45808931 has 24 divisors (see below), whose sum is σ = 57065760. Its totient is φ = 35896320.

The previous prime is 45808921. The next prime is 45808933. The reversal of 45808931 is 13980854.

It is a de Polignac number, because none of the positive numbers 2^k-45808931 is a prime.

It is a super-2 number, since 2×45808931² = 4196916318725522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45808933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199925 + ... + 200153.

It is an arithmetic number, because the mean of its divisors is an integer number (2377740).

Almost surely, 2^45808931 is an apocalyptic number.

45808931 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

45808931 is a deficient number, since it is larger than the sum of its proper divisors (11256829).

45808931 is a wasteful number, since it uses less digits than its factorization.

45808931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 45808931 is about 6768.2295321598. The cubic root of 45808931 is about 357.8080048926.

The spelling of 45808931 in words is "forty-five million, eight hundred eight thousand, nine hundred thirty-one".