45019880 has 32 divisors (see below), whose sum is σ = 101498400. Its totient is φ = 17971776.

The previous prime is 45019867. The next prime is 45019939. The reversal of 45019880 is 8891054.

It is a self number, because there is not a number n which added to its sum of digits gives 45019880.

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, 28799 + ... + 30321.

It is an arithmetic number, because the mean of its divisors is an integer number (3171825).

Almost surely, 2^45019880 is an apocalyptic number.

45019880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45019880 is an abundant number, since it is smaller than the sum of its proper divisors (56478520).

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

45019880 is a wasteful number, since it uses less digits than its factorization.

45019880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273 (or 2269 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 45019880 is about 6709.6855365956. The cubic root of 45019880 is about 355.7417012850.

The spelling of 45019880 in words is "forty-five million, nineteen thousand, eight hundred eighty".