45816489 has 16 divisors (see below), whose sum is σ = 67986240. Its totient is φ = 30494880.

The previous prime is 45816461. The next prime is 45816497. The reversal of 45816489 is 98461854.

45816489 is a `hidden beast` number, since 4 + 581 + 64 + 8 + 9 = 666.

It is not a de Polignac number, because 45816489 - 2²⁵ = 12262057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45836489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24394 + ... + 26204.

It is an arithmetic number, because the mean of its divisors is an integer number (4249140).

Almost surely, 2^45816489 is an apocalyptic number.

It is an amenable number.

45816489 is a deficient number, since it is larger than the sum of its proper divisors (22169751).

45816489 is a wasteful number, since it uses less digits than its factorization.

45816489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757 (or 2751 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 45816489 is about 6768.7878530798. The cubic root of 45816489 is about 357.8276820176.

The spelling of 45816489 in words is "forty-five million, eight hundred sixteen thousand, four hundred eighty-nine".