331486672 has 80 divisors (see below), whose sum is σ = 774271872. Its totient is φ = 135618560.

The previous prime is 331486669. The next prime is 331486679. The reversal of 331486672 is 276684133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331486679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66408 + ... + 71224.

Almost surely, 2^331486672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331486672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387135936).

331486672 is an abundant number, since it is smaller than the sum of its proper divisors (442785200).

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

331486672 is a wasteful number, since it uses less digits than its factorization.

331486672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4876 (or 4870 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 331486672 is about 18206.7754421259. The cubic root of 331486672 is about 692.0784991194.

The spelling of 331486672 in words is "three hundred thirty-one million, four hundred eighty-six thousand, six hundred seventy-two".