311974040 has 32 divisors (see below), whose sum is σ = 802219680. Its totient is φ = 106962432.

The previous prime is 311974037. The next prime is 311974057. The reversal of 311974040 is 40479113.

It is a junction number, because it is equal to n+sod(n) for n = 311973994 and 311974012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556817 + ... + 557376.

It is an arithmetic number, because the mean of its divisors is an integer number (25069365).

Almost surely, 2^311974040 is an apocalyptic number.

It is an amenable number.

311974040 is an abundant number, since it is smaller than the sum of its proper divisors (490245640).

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

311974040 is a wasteful number, since it uses less digits than its factorization.

311974040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114211 (or 1114207 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 311974040 is about 17662.7868695741. The cubic root of 311974040 is about 678.2234770022.

The spelling of 311974040 in words is "three hundred eleven million, nine hundred seventy-four thousand, forty".