320112400 has 30 divisors (see below), whose sum is σ = 769071002. Its totient is φ = 128044800.

The previous prime is 320112391. The next prime is 320112467. The reversal of 320112400 is 4211023.

It can be written as a sum of positive squares in 3 ways, for example, as 88585744 + 231526656 = 9412^2 + 15216^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 399741 + ... + 400540.

Almost surely, 2^320112400 is an apocalyptic number.

It is an amenable number.

320112400 is an abundant number, since it is smaller than the sum of its proper divisors (448958602).

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

320112400 is a wasteful number, since it uses less digits than its factorization.

320112400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800299 (or 800288 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 320112400 is about 17891.6852196768. The cubic root of 320112400 is about 684.0704531695.

Adding to 320112400 its reverse (4211023), we get a palindrome (324323423).

The spelling of 320112400 in words is "three hundred twenty million, one hundred twelve thousand, four hundred".