329713872 has 20 divisors (see below), whose sum is σ = 851760960. Its totient is φ = 109904608.

The previous prime is 329713871. The next prime is 329713877. The reversal of 329713872 is 278317923.

It is a super-2 number, since 2×329713872² = 217422474778464768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329713871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3434472 + ... + 3434567.

It is an arithmetic number, because the mean of its divisors is an integer number (42588048).

Almost surely, 2^329713872 is an apocalyptic number.

It is an amenable number.

329713872 is an abundant number, since it is smaller than the sum of its proper divisors (522047088).

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

329713872 is a wasteful number, since it uses less digits than its factorization.

329713872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6869050 (or 6869044 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 329713872 is about 18158.0250027364. The cubic root of 329713872 is about 690.8425414537.

The spelling of 329713872 in words is "three hundred twenty-nine million, seven hundred thirteen thousand, eight hundred seventy-two".