494564915 has 16 divisors (see below), whose sum is σ = 643214208. Its totient is φ = 362883456.

The previous prime is 494564911. The next prime is 494564933. The reversal of 494564915 is 519465494.

It is not a de Polignac number, because 494564915 - 2² = 494564911 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 494564915.

It is not an unprimeable number, because it can be changed into a prime (494564911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14027 + ... + 34436.

It is an arithmetic number, because the mean of its divisors is an integer number (40200888).

Almost surely, 2^494564915 is an apocalyptic number.

494564915 is a deficient number, since it is larger than the sum of its proper divisors (148649293).

494564915 is a wasteful number, since it uses less digits than its factorization.

494564915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48638.

The product of its digits is 777600, while the sum is 47.

The square root of 494564915 is about 22238.8155035290. The cubic root of 494564915 is about 790.8141555880.

The spelling of 494564915 in words is "four hundred ninety-four million, five hundred sixty-four thousand, nine hundred fifteen".