328431361 has 8 divisors (see below), whose sum is σ = 340704000. Its totient is φ = 316361760.

The previous prime is 328431353. The next prime is 328431371. The reversal of 328431361 is 163134823.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 328431361 - 2³ = 328431353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328431371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47461 + ... + 53938.

It is an arithmetic number, because the mean of its divisors is an integer number (42588000).

Almost surely, 2^328431361 is an apocalyptic number.

It is an amenable number.

328431361 is a deficient number, since it is larger than the sum of its proper divisors (12272639).

328431361 is a wasteful number, since it uses less digits than its factorization.

328431361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101519.

The product of its digits is 10368, while the sum is 31.

The square root of 328431361 is about 18122.6753267833. The cubic root of 328431361 is about 689.9456380892.

The spelling of 328431361 in words is "three hundred twenty-eight million, four hundred thirty-one thousand, three hundred sixty-one".