490031855 has 4 divisors (see below), whose sum is σ = 588038232. Its totient is φ = 392025480.

The previous prime is 490031837. The next prime is 490031863. The reversal of 490031855 is 558130094.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 490031855 - 2²⁰ = 488983279 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 49003181 + ... + 49003190.

It is an arithmetic number, because the mean of its divisors is an integer number (147009558).

Almost surely, 2^490031855 is an apocalyptic number.

490031855 is a deficient number, since it is larger than the sum of its proper divisors (98006377).

490031855 is an equidigital number, since it uses as much as digits as its factorization.

490031855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98006376.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 490031855 is about 22136.6631405910. The cubic root of 490031855 is about 788.3906000481.

The spelling of 490031855 in words is "four hundred ninety million, thirty-one thousand, eight hundred fifty-five".