328351331 has 32 divisors (see below), whose sum is σ = 435302400. Its totient is φ = 239928480.

The previous prime is 328351321. The next prime is 328351337. The reversal of 328351331 is 133153823.

It is not a de Polignac number, because 328351331 - 2⁶ = 328351267 is a prime.

It is a super-2 number, since 2×328351331² = 215629193138943122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 328351294 and 328351303.

It is not an unprimeable number, because it can be changed into a prime (328351337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149600 + ... + 151778.

It is an arithmetic number, because the mean of its divisors is an integer number (13603200).

Almost surely, 2^328351331 is an apocalyptic number.

328351331 is a deficient number, since it is larger than the sum of its proper divisors (106951069).

328351331 is a wasteful number, since it uses less digits than its factorization.

328351331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319.

The product of its digits is 6480, while the sum is 29.

The square root of 328351331 is about 18120.4671849266. The cubic root of 328351331 is about 689.8895930608.

The spelling of 328351331 in words is "three hundred twenty-eight million, three hundred fifty-one thousand, three hundred thirty-one".