331361172 has 24 divisors (see below), whose sum is σ = 859084800. Its totient is φ = 110453688.

The previous prime is 331361171. The next prime is 331361209. The reversal of 331361172 is 271163133.

331361172 is a `hidden beast` number, since 33 + 13 + 611 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331361171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1533972 + ... + 1534187.

It is an arithmetic number, because the mean of its divisors is an integer number (35795200).

Almost surely, 2^331361172 is an apocalyptic number.

It is an amenable number.

331361172 is an abundant number, since it is smaller than the sum of its proper divisors (527723628).

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

331361172 is a wasteful number, since it uses less digits than its factorization.

331361172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068172 (or 3068164 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 331361172 is about 18203.3285967155. The cubic root of 331361172 is about 691.9911483827.

The spelling of 331361172 in words is "three hundred thirty-one million, three hundred sixty-one thousand, one hundred seventy-two".