328131404 has 24 divisors (see below), whose sum is σ = 613200000. Its totient is φ = 153296640.

The previous prime is 328131403. The next prime is 328131437. The reversal of 328131404 is 404131823.

It is a super-2 number, since 2×328131404² = 215340436582022432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (328131403) 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, 42029 + ... + 49220.

It is an arithmetic number, because the mean of its divisors is an integer number (25550000).

Almost surely, 2^328131404 is an apocalyptic number.

It is an amenable number.

328131404 is a deficient number, since it is larger than the sum of its proper divisors (285068596).

328131404 is a wasteful number, since it uses less digits than its factorization.

328131404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91313 (or 91311 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 328131404 is about 18114.3976990680. The cubic root of 328131404 is about 689.7355312154.

The spelling of 328131404 in words is "three hundred twenty-eight million, one hundred thirty-one thousand, four hundred four".