494256618 has 12 divisors (see below), whose sum is σ = 1070889378. Its totient is φ = 164752200.

The previous prime is 494256571. The next prime is 494256643. The reversal of 494256618 is 816652494.

494256618 is a `hidden beast` number, since 4 + 9 + 4 + 25 + 6 + 618 = 666.

It can be written as a sum of positive squares in only one way, i.e., 491641929 + 2614689 = 22173^2 + 1617^2 .

It is a Curzon number.

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 5 ways as a sum of consecutive naturals, for example, 13729333 + ... + 13729368.

Almost surely, 2^494256618 is an apocalyptic number.

494256618 is an abundant number, since it is smaller than the sum of its proper divisors (576632760).

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

494256618 is a wasteful number, since it uses less digits than its factorization.

494256618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27458709 (or 27458706 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 494256618 is about 22231.8829162084. The cubic root of 494256618 is about 790.6497981213.

The spelling of 494256618 in words is "four hundred ninety-four million, two hundred fifty-six thousand, six hundred eighteen".