490970256 has 80 divisors (see below), whose sum is σ = 1452002304. Its totient is φ = 140038272.

The previous prime is 490970239. The next prime is 490970257. The reversal of 490970256 is 652079094.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (490970257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317421 + ... + 318963.

Almost surely, 2^490970256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 490970256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (726001152).

490970256 is an abundant number, since it is smaller than the sum of its proper divisors (961032048).

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

490970256 is a wasteful number, since it uses less digits than its factorization.

490970256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508 (or 2502 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 490970256 is about 22157.8486320310. The cubic root of 490970256 is about 788.8935297867.

The spelling of 490970256 in words is "four hundred ninety million, nine hundred seventy thousand, two hundred fifty-six".