311604340 has 24 divisors (see below), whose sum is σ = 654774120. Its totient is φ = 124564608.

The previous prime is 311604317. The next prime is 311604379. The reversal of 311604340 is 43406113.

It can be written as a sum of positive squares in 4 ways, for example, as 11236 + 311593104 = 106^2 + 17652^2 .

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 7 ways as a sum of consecutive naturals, for example, 37266 + ... + 44854.

It is an arithmetic number, because the mean of its divisors is an integer number (27282255).

Almost surely, 2^311604340 is an apocalyptic number.

It is an amenable number.

311604340 is an abundant number, since it is smaller than the sum of its proper divisors (343169780).

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

311604340 is a wasteful number, since it uses less digits than its factorization.

311604340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9651 (or 9649 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 311604340 is about 17652.3182613503. The cubic root of 311604340 is about 677.9554650339.

The spelling of 311604340 in words is "three hundred eleven million, six hundred four thousand, three hundred forty".