331284480 has 136 divisors (see below), whose sum is σ = 1063247952. Its totient is φ = 88080384.

The previous prime is 331284451. The next prime is 331284497. The reversal of 331284480 is 84482133.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 982872 + ... + 983208.

Almost surely, 2^331284480 is an apocalyptic number.

331284480 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 331284480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531623976).

331284480 is an abundant number, since it is smaller than the sum of its proper divisors (731963472).

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

331284480 is an frugal number, since it uses more digits than its factorization.

331284480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 331284480 is about 18201.2219370019. The cubic root of 331284480 is about 691.9377582207.

The spelling of 331284480 in words is "three hundred thirty-one million, two hundred eighty-four thousand, four hundred eighty".