311942444 has 48 divisors (see below), whose sum is σ = 620524800. Its totient is φ = 135912000.

The previous prime is 311942443. The next prime is 311942467. The reversal of 311942444 is 444249113.

It is a self number, because there is not a number n which added to its sum of digits gives 311942444.

It is not an unprimeable number, because it can be changed into a prime (311942443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191867 + ... + 193485.

It is an arithmetic number, because the mean of its divisors is an integer number (12927600).

Almost surely, 2^311942444 is an apocalyptic number.

It is an amenable number.

311942444 is a deficient number, since it is larger than the sum of its proper divisors (308582356).

311942444 is a wasteful number, since it uses less digits than its factorization.

311942444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814 (or 1812 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 311942444 is about 17661.8924240864. The cubic root of 311942444 is about 678.2005799342.

The spelling of 311942444 in words is "three hundred eleven million, nine hundred forty-two thousand, four hundred forty-four".