45931992 has 16 divisors (see below), whose sum is σ = 114830040. Its totient is φ = 15310656.

The previous prime is 45931981. The next prime is 45931993. The reversal of 45931992 is 29913954.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45931993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 956893 + ... + 956940.

Almost surely, 2^45931992 is an apocalyptic number.

It is an amenable number.

45931992 is an abundant number, since it is smaller than the sum of its proper divisors (68898048).

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

45931992 is a wasteful number, since it uses less digits than its factorization.

45931992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913842 (or 1913838 counting only the distinct ones).

The product of its digits is 87480, while the sum is 42.

The square root of 45931992 is about 6777.3145124009. The cubic root of 45931992 is about 358.1281232576.

The spelling of 45931992 in words is "forty-five million, nine hundred thirty-one thousand, nine hundred ninety-two".