672880840 has 32 divisors (see below), whose sum is σ = 1539648000. Its totient is φ = 264589504.

The previous prime is 672880837. The next prime is 672880867. The reversal of 672880840 is 48088276.

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, 140200 + ... + 144919.

It is an arithmetic number, because the mean of its divisors is an integer number (48114000).

Almost surely, 2^672880840 is an apocalyptic number.

It is an amenable number.

672880840 is an abundant number, since it is smaller than the sum of its proper divisors (866767160).

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

672880840 is a wasteful number, since it uses less digits than its factorization.

672880840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285189 (or 285185 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 672880840 is about 25939.9468002539. The cubic root of 672880840 is about 876.2863648189.

The spelling of 672880840 in words is "six hundred seventy-two million, eight hundred eighty thousand, eight hundred forty".