490064256 has 160 divisors (see below), whose sum is σ = 1591377480. Its totient is φ = 148469760.

The previous prime is 490064189. The next prime is 490064261. The reversal of 490064256 is 652460094.

490064256 is a `hidden beast` number, since 4 + 9 + 0 + 0 + 642 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 490064256.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 111900 + ... + 116196.

Almost surely, 2^490064256 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 490064256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (795688740).

490064256 is an abundant number, since it is smaller than the sum of its proper divisors (1101313224).

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

490064256 is a wasteful number, since it uses less digits than its factorization.

490064256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334 (or 4313 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 490064256 is about 22137.3949686949. The cubic root of 490064256 is about 788.4079758442.

The spelling of 490064256 in words is "four hundred ninety million, sixty-four thousand, two hundred fifty-six".