320764972 has 24 divisors (see below), whose sum is σ = 612944640. Its totient is φ = 145665360.

The previous prime is 320764963. The next prime is 320764981. The reversal of 320764972 is 279467023.

It is an interprime number because it is at equal distance from previous prime (320764963) and next prime (320764981).

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, 55273 + ... + 60799.

It is an arithmetic number, because the mean of its divisors is an integer number (25539360).

Almost surely, 2^320764972 is an apocalyptic number.

It is an amenable number.

320764972 is a deficient number, since it is larger than the sum of its proper divisors (292179668).

320764972 is a wasteful number, since it uses less digits than its factorization.

320764972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6861 (or 6859 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 320764972 is about 17909.9126742706. The cubic root of 320764972 is about 684.5349798211.

The spelling of 320764972 in words is "three hundred twenty million, seven hundred sixty-four thousand, nine hundred seventy-two".