494706564 has 81 divisors (see below), whose sum is σ = 1378616421. Its totient is φ = 149466240.

The previous prime is 494706547. The next prime is 494706571. The reversal of 494706564 is 465607494.

The square root of 494706564 is 22242.

It is a perfect power (a square), and thus also a powerful number.

494706564 is a `hidden beast` number, since 49 + 47 + 0 + 6 + 564 = 666.

It can be written as a sum of positive squares in only one way, i.e., 133402500 + 361304064 = 11550^2 + 19008^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1467804 + ... + 1468140.

Almost surely, 2^494706564 is an apocalyptic number.

494706564 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

494706564 is the 22242-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494706564

494706564 is an abundant number, since it is smaller than the sum of its proper divisors (883909857).

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

494706564 is a wasteful number, since it uses less digits than its factorization.

494706564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The cubic root of 494706564 is about 790.8896477619.

The spelling of 494706564 in words is "four hundred ninety-four million, seven hundred six thousand, five hundred sixty-four".