328806031 has 16 divisors (see below), whose sum is σ = 348935040. Its totient is φ = 309326080.

The previous prime is 328806017. The next prime is 328806053. The reversal of 328806031 is 130608823.

It is a cyclic number.

It is not a de Polignac number, because 328806031 - 2¹¹ = 328803983 is a prime.

It is a super-2 number, since 2×328806031² = 216226812043945922, 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 = 328805984 and 328806002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328806431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431691 + ... + 432451.

It is an arithmetic number, because the mean of its divisors is an integer number (21808440).

Almost surely, 2^328806031 is an apocalyptic number.

328806031 is a deficient number, since it is larger than the sum of its proper divisors (20129009).

328806031 is a wasteful number, since it uses less digits than its factorization.

328806031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 328806031 is about 18133.0094303180. The cubic root of 328806031 is about 690.2078985660.

The spelling of 328806031 in words is "three hundred twenty-eight million, eight hundred six thousand, thirty-one".