331390852 has 24 divisors (see below), whose sum is σ = 639072896. Its totient is φ = 149391648.

The previous prime is 331390841. The next prime is 331390853. The reversal of 331390852 is 258093133.

331390852 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (331390853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71868 + ... + 76339.

Almost surely, 2^331390852 is an apocalyptic number.

It is an amenable number.

331390852 is a deficient number, since it is larger than the sum of its proper divisors (307682044).

331390852 is a wasteful number, since it uses less digits than its factorization.

331390852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148267 (or 148265 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 331390852 is about 18204.1438139782. The cubic root of 331390852 is about 692.0118083008.

The spelling of 331390852 in words is "three hundred thirty-one million, three hundred ninety thousand, eight hundred fifty-two".