311628604 has 12 divisors (see below), whose sum is σ = 623257264. Its totient is φ = 133555104.

The previous prime is 311628593. The next prime is 311628613. The reversal of 311628604 is 406826113.

It is a happy number.

311628604 is an admirable number.

It is a super-2 number, since 2×311628604² = 194224773661977632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5564769 + ... + 5564824.

Almost surely, 2^311628604 is an apocalyptic number.

It is an amenable number.

311628604 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

311628604 is a wasteful number, since it uses less digits than its factorization.

311628604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11129604 (or 11129602 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 311628604 is about 17653.0055231397. The cubic root of 311628604 is about 677.9730615843.

The spelling of 311628604 in words is "three hundred eleven million, six hundred twenty-eight thousand, six hundred four".