490123564 has 24 divisors (see below), whose sum is σ = 981444128. Its totient is φ = 209796480.

The previous prime is 490123541. The next prime is 490123603. The reversal of 490123564 is 465321094.

It is a happy number.

It is a super-2 number, since 2×490123564² = 480442215976124192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13624 + ... + 34144.

Almost surely, 2^490123564 is an apocalyptic number.

It is an amenable number.

490123564 is an abundant number, since it is smaller than the sum of its proper divisors (491320564).

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

490123564 is a wasteful number, since it uses less digits than its factorization.

490123564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21385 (or 21383 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 490123564 is about 22138.7344715094. The cubic root of 490123564 is about 788.4397791663.

The spelling of 490123564 in words is "four hundred ninety million, one hundred twenty-three thousand, five hundred sixty-four".