331339293 has 12 divisors (see below), whose sum is σ = 483536508. Its totient is φ = 218615040.

The previous prime is 331339277. The next prime is 331339301. The reversal of 331339293 is 392933133.

331339293 is a `hidden beast` number, since 3 + 31 + 339 + 293 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 48191364 + 283147929 = 6942^2 + 16827^2 .

It is not a de Polignac number, because 331339293 - 2⁴ = 331339277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331339213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188898 + ... + 190643.

It is an arithmetic number, because the mean of its divisors is an integer number (40294709).

Almost surely, 2^331339293 is an apocalyptic number.

It is an amenable number.

331339293 is a deficient number, since it is larger than the sum of its proper divisors (152197215).

331339293 is a wasteful number, since it uses less digits than its factorization.

331339293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379644 (or 379641 counting only the distinct ones).

The product of its digits is 39366, while the sum is 36.

The square root of 331339293 is about 18202.7276252764. The cubic root of 331339293 is about 691.9759178640.

The spelling of 331339293 in words is "three hundred thirty-one million, three hundred thirty-nine thousand, two hundred ninety-three".