311784942 has 32 divisors (see below), whose sum is σ = 727200000. Its totient is φ = 89080824.

The previous prime is 311784937. The next prime is 311784953. The reversal of 311784942 is 249487113.

311784942 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 311784942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73692 + ... + 77807.

It is an arithmetic number, because the mean of its divisors is an integer number (22725000).

Almost surely, 2^311784942 is an apocalyptic number.

311784942 is an abundant number, since it is smaller than the sum of its proper divisors (415415058).

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

311784942 is a wasteful number, since it uses less digits than its factorization.

311784942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151525 (or 151511 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 311784942 is about 17657.4330524003. The cubic root of 311784942 is about 678.0864179228.

The spelling of 311784942 in words is "three hundred eleven million, seven hundred eighty-four thousand, nine hundred forty-two".