490856 has 8 divisors (see below), whose sum is σ = 920370. Its totient is φ = 245424.

The previous prime is 490849. The next prime is 490859. The reversal of 490856 is 658094.

It can be written as a sum of positive squares in only one way, i.e., 302500 + 188356 = 550^2 + 434^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×490856² = 481879225472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (490859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30671 + ... + 30686.

2⁴⁹⁰⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

490856 is a deficient number, since it is larger than the sum of its proper divisors (429514).

490856 is a wasteful number, since it uses less digits than its factorization.

490856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61363 (or 61359 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 490856 is about 700.6111617723. The cubic root of 490856 is about 78.8832329330.

The spelling of 490856 in words is "four hundred ninety thousand, eight hundred fifty-six".