331393080 has 32 divisors (see below), whose sum is σ = 994179600. Its totient is φ = 88371456.

The previous prime is 331393057. The next prime is 331393109. The reversal of 331393080 is 80393133.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1380685 + ... + 1380924.

Almost surely, 2^331393080 is an apocalyptic number.

331393080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331393080 is an abundant number, since it is smaller than the sum of its proper divisors (662786520).

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

331393080 is a wasteful number, since it uses less digits than its factorization.

331393080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761623 (or 2761619 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 331393080 is about 18204.2050087336. The cubic root of 331393080 is about 692.0133591371.

The spelling of 331393080 in words is "three hundred thirty-one million, three hundred ninety-three thousand, eighty".