331172340 has 48 divisors (see below), whose sum is σ = 947020032. Its totient is φ = 86432896.

The previous prime is 331172339. The next prime is 331172353. The reversal of 331172340 is 43271133.

It is a self number, because there is not a number n which added to its sum of digits gives 331172340.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 55899 + ... + 61538.

It is an arithmetic number, because the mean of its divisors is an integer number (19729584).

Almost surely, 2^331172340 is an apocalyptic number.

331172340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331172340 is an abundant number, since it is smaller than the sum of its proper divisors (615847692).

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

331172340 is a wasteful number, since it uses less digits than its factorization.

331172340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117496 (or 117494 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 331172340 is about 18198.1411138611. The cubic root of 331172340 is about 691.8596756242.

The spelling of 331172340 in words is "three hundred thirty-one million, one hundred seventy-two thousand, three hundred forty".