490731279 has 8 divisors (see below), whose sum is σ = 654420480. Its totient is φ = 327098136.

The previous prime is 490731247. The next prime is 490731313. The reversal of 490731279 is 972137094.

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

It is not a de Polignac number, because 490731279 - 2⁵ = 490731247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 490731279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490731229) 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, 14992 + ... + 34730.

It is an arithmetic number, because the mean of its divisors is an integer number (81802560).

Almost surely, 2^490731279 is an apocalyptic number.

490731279 is a deficient number, since it is larger than the sum of its proper divisors (163689201).

490731279 is a wasteful number, since it uses less digits than its factorization.

490731279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28029.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 490731279 is about 22152.4553718092. The cubic root of 490731279 is about 788.7655125235.

The spelling of 490731279 in words is "four hundred ninety million, seven hundred thirty-one thousand, two hundred seventy-nine".