311408242 has 8 divisors (see below), whose sum is σ = 467306496. Its totient is φ = 155639412.

The previous prime is 311408239. The next prime is 311408257. The reversal of 311408242 is 242804113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26098 + ... + 36109.

It is an arithmetic number, because the mean of its divisors is an integer number (58413312).

Almost surely, 2^311408242 is an apocalyptic number.

311408242 is a deficient number, since it is larger than the sum of its proper divisors (155898254).

311408242 is a wasteful number, since it uses less digits than its factorization.

311408242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64712.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 311408242 is about 17646.7629326174. The cubic root of 311408242 is about 677.8132188242.

The spelling of 311408242 in words is "three hundred eleven million, four hundred eight thousand, two hundred forty-two".