331172672 has 14 divisors (see below), whose sum is σ = 657170898. Its totient is φ = 165586304.

The previous prime is 331172671. The next prime is 331172683. The reversal of 331172672 is 276271133.

It can be written as a sum of positive squares in only one way, i.e., 304711936 + 26460736 = 17456^2 + 5144^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331172671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2587223 + ... + 2587350.

Almost surely, 2^331172672 is an apocalyptic number.

331172672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

331172672 is a deficient number, since it is larger than the sum of its proper divisors (325998226).

331172672 is an equidigital number, since it uses as much as digits as its factorization.

331172672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5174585 (or 5174575 counting only the distinct ones).

The product of its digits is 10584, while the sum is 32.

The square root of 331172672 is about 18198.1502356696. The cubic root of 331172672 is about 691.8599068204.

The spelling of 331172672 in words is "three hundred thirty-one million, one hundred seventy-two thousand, six hundred seventy-two".