45279980 has 24 divisors (see below), whose sum is σ = 95237520. Its totient is φ = 18083520.

The previous prime is 45279977. The next prime is 45280003. The reversal of 45279980 is 8997254.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15215 + ... + 17945.

It is an arithmetic number, because the mean of its divisors is an integer number (3968230).

Almost surely, 2^45279980 is an apocalyptic number.

It is an amenable number.

45279980 is an abundant number, since it is smaller than the sum of its proper divisors (49957540).

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

45279980 is a wasteful number, since it uses less digits than its factorization.

45279980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569 (or 3567 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 45279980 is about 6729.0400504084. The cubic root of 45279980 is about 356.4254791594.

The spelling of 45279980 in words is "forty-five million, two hundred seventy-nine thousand, nine hundred eighty".