672685320 has 32 divisors (see below), whose sum is σ = 2018056320. Its totient is φ = 179382720.

The previous prime is 672685313. The next prime is 672685339. The reversal of 672685320 is 23586276.

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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2802736 + ... + 2802975.

It is an arithmetic number, because the mean of its divisors is an integer number (63064260).

Almost surely, 2^672685320 is an apocalyptic number.

672685320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

672685320 is an abundant number, since it is smaller than the sum of its proper divisors (1345371000).

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

672685320 is a wasteful number, since it uses less digits than its factorization.

672685320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605725 (or 5605721 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 672685320 is about 25936.1778217223. The cubic root of 672685320 is about 876.2014819802.

The spelling of 672685320 in words is "six hundred seventy-two million, six hundred eighty-five thousand, three hundred twenty".