320849672 has 32 divisors (see below), whose sum is σ = 706769280. Its totient is φ = 134621760.

The previous prime is 320849663. The next prime is 320849693. The reversal of 320849672 is 276948023.

It is a happy number.

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, 139088 + ... + 141375.

It is an arithmetic number, because the mean of its divisors is an integer number (22086540).

Almost surely, 2^320849672 is an apocalyptic number.

It is an amenable number.

320849672 is an abundant number, since it is smaller than the sum of its proper divisors (385919608).

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

320849672 is a wasteful number, since it uses less digits than its factorization.

320849672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280493 (or 280489 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 320849672 is about 17912.2771305047. The cubic root of 320849672 is about 684.5952264349.

The spelling of 320849672 in words is "three hundred twenty million, eight hundred forty-nine thousand, six hundred seventy-two".