45448020 has 48 divisors (see below), whose sum is σ = 141395520. Its totient is φ = 12119328.

The previous prime is 45447979. The next prime is 45448063. The reversal of 45448020 is 2084454.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41542 + ... + 42621.

It is an arithmetic number, because the mean of its divisors is an integer number (2945740).

Almost surely, 2^45448020 is an apocalyptic number.

It is an amenable number.

45448020 is an abundant number, since it is smaller than the sum of its proper divisors (95947500).

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

45448020 is a wasteful number, since it uses less digits than its factorization.

45448020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84181 (or 84173 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 45448020 is about 6741.5146666013. The cubic root of 45448020 is about 356.8658488968.

The spelling of 45448020 in words is "forty-five million, four hundred forty-eight thousand, twenty".