331972882 has 4 divisors (see below), whose sum is σ = 497959326. Its totient is φ = 165986440.

The previous prime is 331972871. The next prime is 331972903. The reversal of 331972882 is 288279133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 288279133 = 59 ⋅4886087.

It can be written as a sum of positive squares in only one way, i.e., 186022321 + 145950561 = 13639^2 + 12081^2 .

It is a super-2 number, since 2×331972882² = 220411988766771848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82993219 + ... + 82993222.

Almost surely, 2^331972882 is an apocalyptic number.

331972882 is a deficient number, since it is larger than the sum of its proper divisors (165986444).

331972882 is a wasteful number, since it uses less digits than its factorization.

331972882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165986443.

The product of its digits is 145152, while the sum is 43.

The square root of 331972882 is about 18220.1229962918. The cubic root of 331972882 is about 692.4167038704.

The spelling of 331972882 in words is "three hundred thirty-one million, nine hundred seventy-two thousand, eight hundred eighty-two".