490278656 has 72 divisors (see below), whose sum is σ = 1145899104. Its totient is φ = 204963840.

The previous prime is 490278629. The next prime is 490278707. The reversal of 490278656 is 656872094.

It is a self number, because there is not a number n which added to its sum of digits gives 490278656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70136 + ... + 76808.

Almost surely, 2^490278656 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 490278656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572949552).

490278656 is an abundant number, since it is smaller than the sum of its proper divisors (655620448).

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

490278656 is an equidigital number, since it uses as much as digits as its factorization.

490278656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6737 (or 6723 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 490278656 is about 22142.2369240328. The cubic root of 490278656 is about 788.5229335757.

The spelling of 490278656 in words is "four hundred ninety million, two hundred seventy-eight thousand, six hundred fifty-six".