459139856 has 20 divisors (see below), whose sum is σ = 1016667072. Its totient is φ = 196774176.

The previous prime is 459139843. The next prime is 459139873. The reversal of 459139856 is 658931954.

It is a happy number.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2049620 + ... + 2049843.

Almost surely, 2^459139856 is an apocalyptic number.

It is an amenable number.

459139856 is an abundant number, since it is smaller than the sum of its proper divisors (557527216).

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

459139856 is a wasteful number, since it uses less digits than its factorization.

459139856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099478 (or 4099472 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 50.

The square root of 459139856 is about 21427.5489965605. The cubic root of 459139856 is about 771.4628154633.

The spelling of 459139856 in words is "four hundred fifty-nine million, one hundred thirty-nine thousand, eight hundred fifty-six".