494392569 has 12 divisors (see below), whose sum is σ = 724564848. Its totient is φ = 299631640.

The previous prime is 494392541. The next prime is 494392621. The reversal of 494392569 is 965293494.

It is not a de Polignac number, because 494392569 - 2⁸ = 494392313 is a prime.

It is a super-2 number, since 2×494392569² = 488848024564839522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (494392169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 680619 + ... + 681344.

It is an arithmetic number, because the mean of its divisors is an integer number (60380404).

Almost surely, 2^494392569 is an apocalyptic number.

It is an amenable number.

494392569 is a deficient number, since it is larger than the sum of its proper divisors (230172279).

494392569 is a wasteful number, since it uses less digits than its factorization.

494392569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361988 (or 1361977 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 51.

The square root of 494392569 is about 22234.9402742620. The cubic root of 494392569 is about 790.7222839332.

The spelling of 494392569 in words is "four hundred ninety-four million, three hundred ninety-two thousand, five hundred sixty-nine".