331992068 has 6 divisors (see below), whose sum is σ = 580986126. Its totient is φ = 165996032.

The previous prime is 331992061. The next prime is 331992077. The reversal of 331992068 is 860299133.

It can be written as a sum of positive squares in only one way, i.e., 191047684 + 140944384 = 13822^2 + 11872^2 .

It is a super-2 number, since 2×331992068² = 220437466429833248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331992061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41499005 + ... + 41499012.

It is an arithmetic number, because the mean of its divisors is an integer number (96831021).

Almost surely, 2^331992068 is an apocalyptic number.

It is an amenable number.

331992068 is a deficient number, since it is larger than the sum of its proper divisors (248994058).

331992068 is a wasteful number, since it uses less digits than its factorization.

331992068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82998021 (or 82998019 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 331992068 is about 18220.6494944609. The cubic root of 331992068 is about 692.4300427621.

The spelling of 331992068 in words is "three hundred thirty-one million, nine hundred ninety-two thousand, sixty-eight".