45919986 has 32 divisors (see below), whose sum is σ = 105321600. Its totient is φ = 13074816.

The previous prime is 45919943. The next prime is 45920003. The reversal of 45919986 is 68991954.

It is a super-2 number, since 2×45919986² = 4217290228480392, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11590 + ... + 15038.

It is an arithmetic number, because the mean of its divisors is an integer number (3291300).

Almost surely, 2^45919986 is an apocalyptic number.

45919986 is an abundant number, since it is smaller than the sum of its proper divisors (59401614).

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

45919986 is a wasteful number, since it uses less digits than its factorization.

45919986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3778.

The product of its digits is 699840, while the sum is 51.

The square root of 45919986 is about 6776.4287054465. The cubic root of 45919986 is about 358.0969172598.

The spelling of 45919986 in words is "forty-five million, nine hundred nineteen thousand, nine hundred eighty-six".