311240494 has 16 divisors (see below), whose sum is σ = 470560032. Its totient is φ = 154391328.

The previous prime is 311240491. The next prime is 311240507. The reversal of 311240494 is 494042113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311240491) 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, 284212 + ... + 285304.

It is an arithmetic number, because the mean of its divisors is an integer number (29410002).

Almost surely, 2^311240494 is an apocalyptic number.

311240494 is a deficient number, since it is larger than the sum of its proper divisors (159319538).

311240494 is a wasteful number, since it uses less digits than its factorization.

311240494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 311240494 is about 17642.0093526786. The cubic root of 311240494 is about 677.6914898323.

The spelling of 311240494 in words is "three hundred eleven million, two hundred forty thousand, four hundred ninety-four".