494579557 has 12 divisors (see below), whose sum is σ = 544240480. Its totient is φ = 448168248.

The previous prime is 494579551. The next prime is 494579563. The reversal of 494579557 is 755975494.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (494579551) and next prime (494579563).

It is not a de Polignac number, because 494579557 - 2¹¹ = 494577509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 494579498 and 494579507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494579551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14553 + ... + 34654.

Almost surely, 2^494579557 is an apocalyptic number.

It is an amenable number.

494579557 is a deficient number, since it is larger than the sum of its proper divisors (49660923).

494579557 is a wasteful number, since it uses less digits than its factorization.

494579557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49272 (or 49249 counting only the distinct ones).

The product of its digits is 7938000, while the sum is 55.

The square root of 494579557 is about 22239.1447002802. The cubic root of 494579557 is about 790.8219597449.

The spelling of 494579557 in words is "four hundred ninety-four million, five hundred seventy-nine thousand, five hundred fifty-seven".