500423640 has 64 divisors (see below), whose sum is σ = 1503122400. Its totient is φ = 133281792.

The previous prime is 500423639. The next prime is 500423689. The reversal of 500423640 is 46324005.

500423640 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 500423640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119014 + ... + 123146.

Almost surely, 2^500423640 is an apocalyptic number.

It is an amenable number.

500423640 is an abundant number, since it is smaller than the sum of its proper divisors (1002698760).

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

500423640 is a wasteful number, since it uses less digits than its factorization.

500423640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5156 (or 5152 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 500423640 is about 22370.1506476823. The cubic root of 500423640 is about 793.9246248984.

Adding to 500423640 its reverse (46324005), we get a palindrome (546747645).

The spelling of 500423640 in words is "five hundred million, four hundred twenty-three thousand, six hundred forty".