320374668 has 18 divisors (see below), whose sum is σ = 747685596. Its totient is φ = 106770888.

The previous prime is 320374657. The next prime is 320374669. The reversal of 320374668 is 866473023.

It is a super-2 number, since 2×320374668² = 205279855792220448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320374669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59421 + ... + 64587.

Almost surely, 2^320374668 is an apocalyptic number.

It is an amenable number.

320374668 is an abundant number, since it is smaller than the sum of its proper divisors (427310928).

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

320374668 is an frugal number, since it uses more digits than its factorization.

320374668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10341 (or 5172 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 320374668 is about 17899.0130454168. The cubic root of 320374668 is about 684.2572217495.

The spelling of 320374668 in words is "three hundred twenty million, three hundred seventy-four thousand, six hundred sixty-eight".