311740664 has 16 divisors (see below), whose sum is σ = 587454000. Its totient is φ = 155086272.

The previous prime is 311740621. The next prime is 311740673. The reversal of 311740664 is 466047113.

It is a self number, because there is not a number n which added to its sum of digits gives 311740664.

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, 96317 + ... + 99500.

It is an arithmetic number, because the mean of its divisors is an integer number (36715875).

Almost surely, 2^311740664 is an apocalyptic number.

It is an amenable number.

311740664 is a deficient number, since it is larger than the sum of its proper divisors (275713336).

311740664 is a wasteful number, since it uses less digits than its factorization.

311740664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196022 (or 196018 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 311740664 is about 17656.1792016280. The cubic root of 311740664 is about 678.0543170227.

Adding to 311740664 its reverse (466047113), we get a palindrome (777787777).

The spelling of 311740664 in words is "three hundred eleven million, seven hundred forty thousand, six hundred sixty-four".