328030831 has 4 divisors (see below), whose sum is σ = 332183200. Its totient is φ = 323878464.

The previous prime is 328030823. The next prime is 328030837. The reversal of 328030831 is 138030823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138030823 = 7 ⋅19718689.

It is a cyclic number.

It is not a de Polignac number, because 328030831 - 2³ = 328030823 is a prime.

It is a super-2 number, since 2×328030831² = 215208452173101122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 328030831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328030837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2076066 + ... + 2076223.

It is an arithmetic number, because the mean of its divisors is an integer number (83045800).

Almost surely, 2^328030831 is an apocalyptic number.

328030831 is a deficient number, since it is larger than the sum of its proper divisors (4152369).

328030831 is an equidigital number, since it uses as much as digits as its factorization.

328030831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4152368.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 328030831 is about 18111.6214348688. The cubic root of 328030831 is about 689.6650555267.

The spelling of 328030831 in words is "three hundred twenty-eight million, thirty thousand, eight hundred thirty-one".