331673280 has 112 divisors (see below), whose sum is σ = 1056802560. Its totient is φ = 88132608.

The previous prime is 331673273. The next prime is 331673297. The reversal of 331673280 is 82376133.

It is a super-2 number, since 2×331673280² = 220014329331916800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421047 + ... + 421833.

Almost surely, 2^331673280 is an apocalyptic number.

331673280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331673280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528401280).

331673280 is an abundant number, since it is smaller than the sum of its proper divisors (725129280).

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

331673280 is a wasteful number, since it uses less digits than its factorization.

331673280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246 (or 1236 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 331673280 is about 18211.8994067066. The cubic root of 331673280 is about 692.2083416027.

The spelling of 331673280 in words is "three hundred thirty-one million, six hundred seventy-three thousand, two hundred eighty".