672445560 has 32 divisors (see below), whose sum is σ = 2017337040. Its totient is φ = 179318784.

The previous prime is 672445547. The next prime is 672445561. The reversal of 672445560 is 65544276.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672445561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2801737 + ... + 2801976.

Almost surely, 2^672445560 is an apocalyptic number.

672445560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

672445560 is an abundant number, since it is smaller than the sum of its proper divisors (1344891480).

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

672445560 is a wasteful number, since it uses less digits than its factorization.

672445560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5603727 (or 5603723 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The square root of 672445560 is about 25931.5552946598. Note that the first 3 decimals coincide. The cubic root of 672445560 is about 876.0973703821.

The spelling of 672445560 in words is "six hundred seventy-two million, four hundred forty-five thousand, five hundred sixty".