45902978 has 16 divisors (see below), whose sum is σ = 75366720. Its totient is φ = 20794800.

The previous prime is 45902959. The next prime is 45902981. The reversal of 45902978 is 87920954.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3488 + ... + 10196.

It is an arithmetic number, because the mean of its divisors is an integer number (4710420).

Almost surely, 2^45902978 is an apocalyptic number.

45902978 is a deficient number, since it is larger than the sum of its proper divisors (29463742).

45902978 is a wasteful number, since it uses less digits than its factorization.

45902978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7033.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 45902978 is about 6775.1736509111. The cubic root of 45902978 is about 358.0527007505.

The spelling of 45902978 in words is "forty-five million, nine hundred two thousand, nine hundred seventy-eight".