331492072 has 16 divisors (see below), whose sum is σ = 623397060. Its totient is φ = 165252864.

The previous prime is 331492043. The next prime is 331492087. The reversal of 331492072 is 270294133.

It can be written as a sum of positive squares in 2 ways, for example, as 321341476 + 10150596 = 17926^2 + 3186^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58783 + ... + 64174.

Almost surely, 2^331492072 is an apocalyptic number.

It is an amenable number.

331492072 is a deficient number, since it is larger than the sum of its proper divisors (291904988).

331492072 is a wasteful number, since it uses less digits than its factorization.

331492072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123300 (or 123296 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 331492072 is about 18206.9237379630. The cubic root of 331492072 is about 692.0822571424.

The spelling of 331492072 in words is "three hundred thirty-one million, four hundred ninety-two thousand, seventy-two".