320741872 has 40 divisors (see below), whose sum is σ = 699812352. Its totient is φ = 141086400.

The previous prime is 320741857. The next prime is 320741909. The reversal of 320741872 is 278147023.

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 7 ways as a sum of consecutive naturals, for example, 23938 + ... + 34849.

Almost surely, 2^320741872 is an apocalyptic number.

It is an amenable number.

320741872 is an abundant number, since it is smaller than the sum of its proper divisors (379070480).

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

320741872 is a wasteful number, since it uses less digits than its factorization.

320741872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58837 (or 58831 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 320741872 is about 17909.2677683930. The cubic root of 320741872 is about 684.5185470858.

Adding to 320741872 its reverse (278147023), we get a palindrome (598888895).

The spelling of 320741872 in words is "three hundred twenty million, seven hundred forty-one thousand, eight hundred seventy-two".