45089992 has 8 divisors (see below), whose sum is σ = 84543750. Its totient is φ = 22544992.

The previous prime is 45089977. The next prime is 45090029. The reversal of 45089992 is 29998054.

It can be written as a sum of positive squares in only one way, i.e., 30846916 + 14243076 = 5554^2 + 3774^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2818117 + ... + 2818132.

Almost surely, 2^45089992 is an apocalyptic number.

It is an amenable number.

45089992 is a deficient number, since it is larger than the sum of its proper divisors (39453758).

45089992 is a wasteful number, since it uses less digits than its factorization.

45089992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5636255 (or 5636251 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 45089992 is about 6714.9081899904. The cubic root of 45089992 is about 355.9262777107.

The spelling of 45089992 in words is "forty-five million, eighty-nine thousand, nine hundred ninety-two".