45888021 has 24 divisors (see below), whose sum is σ = 70353920. Its totient is φ = 28740096.

The previous prime is 45888001. The next prime is 45888023. The reversal of 45888021 is 12088854.

It is not a de Polignac number, because 45888021 - 2⁶ = 45887957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45888023) 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, 20661 + ... + 22773.

Almost surely, 2^45888021 is an apocalyptic number.

It is an amenable number.

45888021 is a deficient number, since it is larger than the sum of its proper divisors (24465899).

45888021 is a wasteful number, since it uses less digits than its factorization.

45888021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265 (or 2262 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 45888021 is about 6774.0697516338. The cubic root of 45888021 is about 358.0138072970.

The spelling of 45888021 in words is "forty-five million, eight hundred eighty-eight thousand, twenty-one".