494345664 has 42 divisors (see below), whose sum is σ = 1416954240. Its totient is φ = 164781696.

The previous prime is 494345653. The next prime is 494345699. The reversal of 494345664 is 466543494.

494345664 is a `hidden beast` number, since 49 + 43 + 4 + 566 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 428544 + ... + 429695.

Almost surely, 2^494345664 is an apocalyptic number.

It is an amenable number.

494345664 is an abundant number, since it is smaller than the sum of its proper divisors (922608576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

494345664 is a wasteful number, since it uses less digits than its factorization.

494345664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858257 (or 858244 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The square root of 494345664 is about 22233.8854903951. The cubic root of 494345664 is about 790.6972768140.

The spelling of 494345664 in words is "four hundred ninety-four million, three hundred forty-five thousand, six hundred sixty-four".