672712290 has 80 divisors (see below), whose sum is σ = 1904094720. Its totient is φ = 169944480.

The previous prime is 672712289. The next prime is 672712351. The reversal of 672712290 is 92217276.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6466 + ... + 37245.

It is an arithmetic number, because the mean of its divisors is an integer number (23801184).

Almost surely, 2^672712290 is an apocalyptic number.

672712290 is an abundant number, since it is smaller than the sum of its proper divisors (1231382430).

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

672712290 is a wasteful number, since it uses less digits than its factorization.

672712290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43749 (or 43740 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 672712290 is about 25936.6977466292. The cubic root of 672712290 is about 876.2131916843.

The spelling of 672712290 in words is "six hundred seventy-two million, seven hundred twelve thousand, two hundred ninety".