328745172 has 24 divisors (see below), whose sum is σ = 876654016. Its totient is φ = 93927168.

The previous prime is 328745161. The next prime is 328745177. The reversal of 328745172 is 271547823.

It is a super-2 number, since 2×328745172² = 216146776226619168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 328745172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328745177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1956733 + ... + 1956900.

Almost surely, 2^328745172 is an apocalyptic number.

It is an amenable number.

328745172 is an abundant number, since it is smaller than the sum of its proper divisors (547908844).

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

328745172 is a wasteful number, since it uses less digits than its factorization.

328745172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3913647 (or 3913645 counting only the distinct ones).

The product of its digits is 94080, while the sum is 39.

The square root of 328745172 is about 18131.3312252576. The cubic root of 328745172 is about 690.1653122077.

The spelling of 328745172 in words is "three hundred twenty-eight million, seven hundred forty-five thousand, one hundred seventy-two".