328909272 has 16 divisors (see below), whose sum is σ = 822273240. Its totient is φ = 109636416.

The previous prime is 328909267. The next prime is 328909277. The reversal of 328909272 is 272909823.

It is an interprime number because it is at equal distance from previous prime (328909267) and next prime (328909277).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328909277) 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, 6852253 + ... + 6852300.

Almost surely, 2^328909272 is an apocalyptic number.

It is an amenable number.

328909272 is an abundant number, since it is smaller than the sum of its proper divisors (493363968).

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

328909272 is a wasteful number, since it uses less digits than its factorization.

328909272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13704562 (or 13704558 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 328909272 is about 18135.8559764903. The cubic root of 328909272 is about 690.2801299023.

The spelling of 328909272 in words is "three hundred twenty-eight million, nine hundred nine thousand, two hundred seventy-two".