490487569 has 8 divisors (see below), whose sum is σ = 576237312. Its totient is φ = 411597840.

The previous prime is 490487539. The next prime is 490487579. The reversal of 490487569 is 965784094.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 490487569 - 2⁹ = 490487057 is a prime.

It is a super-2 number, since 2×490487569² = 481156110687059522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490487539) 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, 1714849 + ... + 1715134.

It is an arithmetic number, because the mean of its divisors is an integer number (72029664).

Almost surely, 2^490487569 is an apocalyptic number.

It is an amenable number.

490487569 is a deficient number, since it is larger than the sum of its proper divisors (85749743).

490487569 is a wasteful number, since it uses less digits than its factorization.

490487569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430007.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 490487569 is about 22146.9539440529. The cubic root of 490487569 is about 788.6349170345.

The spelling of 490487569 in words is "four hundred ninety million, four hundred eighty-seven thousand, five hundred sixty-nine".