331247072 has 24 divisors (see below), whose sum is σ = 702308376. Its totient is φ = 152883072.

The previous prime is 331247071. The next prime is 331247087. The reversal of 331247072 is 270742133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331247071) 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 3 ways as a sum of consecutive naturals, for example, 397718 + ... + 398549.

It is an arithmetic number, because the mean of its divisors is an integer number (29262849).

Almost surely, 2^331247072 is an apocalyptic number.

331247072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

331247072 is an abundant number, since it is smaller than the sum of its proper divisors (371061304).

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

331247072 is a wasteful number, since it uses less digits than its factorization.

331247072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796290 (or 796282 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 331247072 is about 18200.1942846773. The cubic root of 331247072 is about 691.9117131511.

The spelling of 331247072 in words is "three hundred thirty-one million, two hundred forty-seven thousand, seventy-two".