320775072 has 48 divisors (see below), whose sum is σ = 843639552. Its totient is φ = 106721280.

The previous prime is 320775053. The next prime is 320775083. The reversal of 320775072 is 270577023.

It is a tau number, because it is divible by the number of its divisors (48).

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 7 ways as a sum of consecutive naturals, for example, 52497 + ... + 58287.

It is an arithmetic number, because the mean of its divisors is an integer number (17575824).

Almost surely, 2^320775072 is an apocalyptic number.

320775072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

320775072 is an abundant number, since it is smaller than the sum of its proper divisors (522864480).

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

320775072 is a wasteful number, since it uses less digits than its factorization.

320775072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6381 (or 6373 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 33.

The square root of 320775072 is about 17910.1946388084. The cubic root of 320775072 is about 684.5421644488.

The spelling of 320775072 in words is "three hundred twenty million, seven hundred seventy-five thousand, seventy-two".