320612372 has 24 divisors (see below), whose sum is σ = 573619200. Its totient is φ = 156750336.

The previous prime is 320612329. The next prime is 320612377. The reversal of 320612372 is 273216023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320612377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42029 + ... + 49067.

It is an arithmetic number, because the mean of its divisors is an integer number (23900800).

Almost surely, 2^320612372 is an apocalyptic number.

It is an amenable number.

320612372 is a deficient number, since it is larger than the sum of its proper divisors (253006828).

320612372 is a wasteful number, since it uses less digits than its factorization.

320612372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7295 (or 7293 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 320612372 is about 17905.6519568543. The cubic root of 320612372 is about 684.4264095629.

Adding to 320612372 its reverse (273216023), we get a palindrome (593828395).

The spelling of 320612372 in words is "three hundred twenty million, six hundred twelve thousand, three hundred seventy-two".