311242044 has 24 divisors (see below), whose sum is σ = 726541648. Its totient is φ = 103703040.

The previous prime is 311242033. The next prime is 311242081. The reversal of 311242044 is 440242113.

311242044 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 311242044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36474 + ... + 44190.

Almost surely, 2^311242044 is an apocalyptic number.

It is an amenable number.

311242044 is an abundant number, since it is smaller than the sum of its proper divisors (415299604).

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

311242044 is a wasteful number, since it uses less digits than its factorization.

311242044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11085 (or 11083 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 311242044 is about 17642.0532818604. The cubic root of 311242044 is about 677.6926148145.

Adding to 311242044 its reverse (440242113), we get a palindrome (751484157).

The spelling of 311242044 in words is "three hundred eleven million, two hundred forty-two thousand, forty-four".