331668792 has 192 divisors, whose sum is σ = 1115412480. Its totient is φ = 86697216.

The previous prime is 331668751. The next prime is 331668817. The reversal of 331668792 is 297866133.

It is a super-2 number, since 2×331668792² = 220008375173478528, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1460983 + ... + 1461209.

It is an arithmetic number, because the mean of its divisors is an integer number (5809440).

Almost surely, 2^331668792 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 331668792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557706240).

331668792 is an abundant number, since it is smaller than the sum of its proper divisors (783743688).

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

331668792 is a wasteful number, since it uses less digits than its factorization.

331668792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 475 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 331668792 is about 18211.7761901469. The cubic root of 331668792 is about 692.2052194086.

The spelling of 331668792 in words is "three hundred thirty-one million, six hundred sixty-eight thousand, seven hundred ninety-two".