45009992 has 16 divisors (see below), whose sum is σ = 86357040. Its totient is φ = 21981456.

The previous prime is 45009989. The next prime is 45010051. The reversal of 45009992 is 29990054.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65078 + ... + 65765.

It is an arithmetic number, because the mean of its divisors is an integer number (5397315).

Almost surely, 2^45009992 is an apocalyptic number.

It is an amenable number.

45009992 is a deficient number, since it is larger than the sum of its proper divisors (41347048).

45009992 is a wasteful number, since it uses less digits than its factorization.

45009992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130892 (or 130888 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 45009992 is about 6708.9486508692. The cubic root of 45009992 is about 355.7156547806.

The spelling of 45009992 in words is "forty-five million, nine thousand, nine hundred ninety-two".