490278817 has 8 divisors (see below), whose sum is σ = 560497536. Its totient is φ = 420104832.

The previous prime is 490278791. The next prime is 490278829. The reversal of 490278817 is 718872094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 490278817 - 2²⁷ = 356061089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490278017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17073 + ... + 35665.

It is an arithmetic number, because the mean of its divisors is an integer number (70062192).

Almost surely, 2^490278817 is an apocalyptic number.

It is an amenable number.

490278817 is a deficient number, since it is larger than the sum of its proper divisors (70218719).

490278817 is a wasteful number, since it uses less digits than its factorization.

490278817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22367.

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 490278817 is about 22142.2405596182. The cubic root of 490278817 is about 788.5230198886.

The spelling of 490278817 in words is "four hundred ninety million, two hundred seventy-eight thousand, eight hundred seventeen".