331464144 has 40 divisors (see below), whose sum is σ = 934127712. Its totient is φ = 100443520.

The previous prime is 331464137. The next prime is 331464149. The reversal of 331464144 is 441464133.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331464149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313359 + ... + 314414.

Almost surely, 2^331464144 is an apocalyptic number.

It is an amenable number.

331464144 is an abundant number, since it is smaller than the sum of its proper divisors (602663568).

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

331464144 is a wasteful number, since it uses less digits than its factorization.

331464144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627795 (or 627789 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 331464144 is about 18206.1567608323. The cubic root of 331464144 is about 692.0628207640.

The spelling of 331464144 in words is "three hundred thirty-one million, four hundred sixty-four thousand, one hundred forty-four".