45653868 has 72 divisors (see below), whose sum is σ = 128918608. Its totient is φ = 14043456.

The previous prime is 45653851. The next prime is 45653879. The reversal of 45653868 is 86835654.

45653868 is a `hidden beast` number, since 4 + 56 + 538 + 68 = 666.

It is a super-2 number, since 2×45653868² = 4168551326722848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10830 + ... + 14442.

Almost surely, 2^45653868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45653868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64459304).

45653868 is an abundant number, since it is smaller than the sum of its proper divisors (83264740).

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

45653868 is a wasteful number, since it uses less digits than its factorization.

45653868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645 (or 3631 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 45653868 is about 6756.7646103738. The cubic root of 45653868 is about 357.4038224008.

The spelling of 45653868 in words is "forty-five million, six hundred fifty-three thousand, eight hundred sixty-eight".