311142924 has 48 divisors (see below), whose sum is σ = 807690240. Its totient is φ = 103582800.

The previous prime is 311142889. The next prime is 311142989. The reversal of 311142924 is 429241113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123057 + ... + 125559.

It is an arithmetic number, because the mean of its divisors is an integer number (16826880).

Almost surely, 2^311142924 is an apocalyptic number.

It is an amenable number.

311142924 is an abundant number, since it is smaller than the sum of its proper divisors (496547316).

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

311142924 is a wasteful number, since it uses less digits than its factorization.

311142924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667 (or 3659 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 311142924 is about 17639.2438613451. The cubic root of 311142924 is about 677.6206664973.

The spelling of 311142924 in words is "three hundred eleven million, one hundred forty-two thousand, nine hundred twenty-four".