320706672 has 80 divisors (see below), whose sum is σ = 973354368. Its totient is φ = 89706240.

The previous prime is 320706571. The next prime is 320706697. The reversal of 320706672 is 276607023.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16498 + ... + 30225.

Almost surely, 2^320706672 is an apocalyptic number.

It is an amenable number.

320706672 is an abundant number, since it is smaller than the sum of its proper divisors (652647696).

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

320706672 is a wasteful number, since it uses less digits than its factorization.

320706672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46758 (or 46752 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 320706672 is about 17908.2850100170. The cubic root of 320706672 is about 684.4935052100.

The spelling of 320706672 in words is "three hundred twenty million, seven hundred six thousand, six hundred seventy-two".