311442348 has 48 divisors (see below), whose sum is σ = 831720960. Its totient is φ = 88854144.

The previous prime is 311442323. The next prime is 311442353. The reversal of 311442348 is 843244113.

It is a super-2 number, since 2×311442348² = 193992672255506208, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 65665 + ... + 70247.

It is an arithmetic number, because the mean of its divisors is an integer number (17327520).

Almost surely, 2^311442348 is an apocalyptic number.

It is an amenable number.

311442348 is an abundant number, since it is smaller than the sum of its proper divisors (520278612).

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

311442348 is a wasteful number, since it uses less digits than its factorization.

311442348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5406 (or 5404 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 311442348 is about 17647.7292590293. The cubic root of 311442348 is about 677.8379630352.

The spelling of 311442348 in words is "three hundred eleven million, four hundred forty-two thousand, three hundred forty-eight".