328263831 has 12 divisors (see below), whose sum is σ = 541895952. Its totient is φ = 187579296.

The previous prime is 328263791. The next prime is 328263877. The reversal of 328263831 is 138362823.

It is not a de Polignac number, because 328263831 - 2¹⁰ = 328262807 is a prime.

It is a super-2 number, since 2×328263831² = 215514285485593122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328263031) 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, 2605206 + ... + 2605331.

It is an arithmetic number, because the mean of its divisors is an integer number (45157996).

Almost surely, 2^328263831 is an apocalyptic number.

328263831 is a deficient number, since it is larger than the sum of its proper divisors (213632121).

328263831 is a wasteful number, since it uses less digits than its factorization.

328263831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210550 (or 5210547 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 328263831 is about 18118.0526271451. The cubic root of 328263831 is about 689.8283063671.

The spelling of 328263831 in words is "three hundred twenty-eight million, two hundred sixty-three thousand, eight hundred thirty-one".