331537396 has 24 divisors (see below), whose sum is σ = 614164320. Its totient is φ = 156328032.

The previous prime is 331537391. The next prime is 331537399. The reversal of 331537396 is 693735133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331537391) 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 7 ways as a sum of consecutive naturals, for example, 28246 + ... + 38221.

It is an arithmetic number, because the mean of its divisors is an integer number (25590180).

Almost surely, 2^331537396 is an apocalyptic number.

It is an amenable number.

331537396 is a deficient number, since it is larger than the sum of its proper divisors (282626924).

331537396 is a wasteful number, since it uses less digits than its factorization.

331537396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66543 (or 66541 counting only the distinct ones).

The product of its digits is 153090, while the sum is 40.

The square root of 331537396 is about 18208.1683867434. The cubic root of 331537396 is about 692.1137978733.

The spelling of 331537396 in words is "three hundred thirty-one million, five hundred thirty-seven thousand, three hundred ninety-six".