331665346 has 8 divisors (see below), whose sum is σ = 497706300. Its totient is φ = 165763248.

The previous prime is 331665331. The next prime is 331665377. The reversal of 331665346 is 643566133.

It can be written as a sum of positive squares in 2 ways, for example, as 306775225 + 24890121 = 17515^2 + 4989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×331665346² = 220003803474599432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28521 + ... + 38428.

Almost surely, 2^331665346 is an apocalyptic number.

331665346 is a deficient number, since it is larger than the sum of its proper divisors (166040954).

331665346 is a wasteful number, since it uses less digits than its factorization.

331665346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69428.

The product of its digits is 116640, while the sum is 37.

The square root of 331665346 is about 18211.6815807876. The cubic root of 331665346 is about 692.2028220898.

The spelling of 331665346 in words is "three hundred thirty-one million, six hundred sixty-five thousand, three hundred forty-six".