494311569 has 8 divisors (see below), whose sum is σ = 659350080. Its totient is φ = 329407056.

The previous prime is 494311541. The next prime is 494311577. The reversal of 494311569 is 965113494.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 494311569 - 2⁵ = 494311537 is a prime.

It is a super-2 number, since 2×494311569² = 488687854494483522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 494311569.

It is not an unprimeable number, because it can be changed into a prime (494311589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24549 + ... + 39890.

It is an arithmetic number, because the mean of its divisors is an integer number (82418760).

Almost surely, 2^494311569 is an apocalyptic number.

It is an amenable number.

494311569 is a deficient number, since it is larger than the sum of its proper divisors (165038511).

494311569 is a wasteful number, since it uses less digits than its factorization.

494311569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66999.

The product of its digits is 116640, while the sum is 42.

The square root of 494311569 is about 22233.1187420928. The cubic root of 494311569 is about 790.6790982766.

The spelling of 494311569 in words is "four hundred ninety-four million, three hundred eleven thousand, five hundred sixty-nine".