331494866 has 16 divisors (see below), whose sum is σ = 527214744. Its totient is φ = 155783424.

The previous prime is 331494809. The next prime is 331494907. The reversal of 331494866 is 668494133.

It can be written as a sum of positive squares in 4 ways, for example, as 241149841 + 90345025 = 15529^2 + 9505^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19976 + ... + 32588.

Almost surely, 2^331494866 is an apocalyptic number.

331494866 is a deficient number, since it is larger than the sum of its proper divisors (195719878).

331494866 is a wasteful number, since it uses less digits than its factorization.

331494866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13405.

The product of its digits is 373248, while the sum is 44.

The square root of 331494866 is about 18207.0004668534. Note that the first 3 decimals coincide. The cubic root of 331494866 is about 692.0842015553.

The spelling of 331494866 in words is "three hundred thirty-one million, four hundred ninety-four thousand, eight hundred sixty-six".