328397256 has 48 divisors (see below), whose sum is σ = 970266960. Its totient is φ = 99514080.

The previous prime is 328397207. The next prime is 328397257. The reversal of 328397256 is 652793823.

328397256 is a `hidden beast` number, since 3 + 2 + 8 + 397 + 256 = 666.

It is not an unprimeable number, because it can be changed into a prime (328397257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206530 + ... + 208113.

It is an arithmetic number, because the mean of its divisors is an integer number (20213895).

Almost surely, 2^328397256 is an apocalyptic number.

328397256 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

328397256 is an abundant number, since it is smaller than the sum of its proper divisors (641869704).

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

328397256 is a wasteful number, since it uses less digits than its factorization.

328397256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414666 (or 414659 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 328397256 is about 18121.7343540843. The cubic root of 328397256 is about 689.9217554628.

The spelling of 328397256 in words is "three hundred twenty-eight million, three hundred ninety-seven thousand, two hundred fifty-six".