331203940 has 12 divisors (see below), whose sum is σ = 695528316. Its totient is φ = 132481568.

The previous prime is 331203913. The next prime is 331203941. The reversal of 331203940 is 49302133.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 131377444 + 199826496 = 11462^2 + 14136^2 .

It is not an unprimeable number, because it can be changed into a prime (331203941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8280079 + ... + 8280118.

It is an arithmetic number, because the mean of its divisors is an integer number (57960693).

Almost surely, 2^331203940 is an apocalyptic number.

It is an amenable number.

331203940 is an abundant number, since it is smaller than the sum of its proper divisors (364324376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331203940 is a wasteful number, since it uses less digits than its factorization.

331203940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16560206 (or 16560204 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 331203940 is about 18199.0093136962. The cubic root of 331203940 is about 691.8816803509.

The spelling of 331203940 in words is "three hundred thirty-one million, two hundred three thousand, nine hundred forty".