490123565 has 16 divisors (see below), whose sum is σ = 593139456. Its totient is φ = 388785600.

The previous prime is 490123541. The next prime is 490123603. The reversal of 490123565 is 565321094.

490123565 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 490123565 - 2¹⁰ = 490122541 is a prime.

It is a super-2 number, since 2×490123565² = 480442217936618450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443804 + ... + 444906.

It is an arithmetic number, because the mean of its divisors is an integer number (37071216).

Almost surely, 2^490123565 is an apocalyptic number.

It is an amenable number.

490123565 is a deficient number, since it is larger than the sum of its proper divisors (103015891).

490123565 is a wasteful number, since it uses less digits than its factorization.

490123565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 490123565 is about 22138.7344940943. The cubic root of 490123565 is about 788.4397797025.

The spelling of 490123565 in words is "four hundred ninety million, one hundred twenty-three thousand, five hundred sixty-five".