331663634 has 16 divisors (see below), whose sum is σ = 533158848. Its totient is φ = 154333872.

The previous prime is 331663627. The next prime is 331663643. The reversal of 331663634 is 436366133.

It is a super-2 number, since 2×331663634² = 220001532236171912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331663594 and 331663603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95732 + ... + 99135.

It is an arithmetic number, because the mean of its divisors is an integer number (33322428).

Almost surely, 2^331663634 is an apocalyptic number.

331663634 is a deficient number, since it is larger than the sum of its proper divisors (201495214).

331663634 is a wasteful number, since it uses less digits than its factorization.

331663634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194929.

The product of its digits is 69984, while the sum is 35.

The square root of 331663634 is about 18211.6345779285. The cubic root of 331663634 is about 692.2016310768.

The spelling of 331663634 in words is "three hundred thirty-one million, six hundred sixty-three thousand, six hundred thirty-four".