311894242 has 16 divisors (see below), whose sum is σ = 510688800. Its totient is φ = 141682240.

The previous prime is 311894227. The next prime is 311894243. The reversal of 311894242 is 242498113.

It is a junction number, because it is equal to n+sod(n) for n = 311894198 and 311894207.

It is not an unprimeable number, because it can be changed into a prime (311894243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43509 + ... + 50167.

It is an arithmetic number, because the mean of its divisors is an integer number (31918050).

Almost surely, 2^311894242 is an apocalyptic number.

311894242 is a deficient number, since it is larger than the sum of its proper divisors (198794558).

311894242 is a wasteful number, since it uses less digits than its factorization.

311894242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8801.

The product of its digits is 13824, while the sum is 34.

The square root of 311894242 is about 17660.5277950575. The cubic root of 311894242 is about 678.1656458099.

The spelling of 311894242 in words is "three hundred eleven million, eight hundred ninety-four thousand, two hundred forty-two".