490886646 has 16 divisors (see below), whose sum is σ = 983014704. Its totient is φ = 163421984.

The previous prime is 490886621. The next prime is 490886653. The reversal of 490886646 is 646688094.

It is a super-2 number, since 2×490886646² = 481939398442258632, which contains 22 as substring.

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, 46545 + ... + 56108.

It is an arithmetic number, because the mean of its divisors is an integer number (61438419).

Almost surely, 2^490886646 is an apocalyptic number.

490886646 is an abundant number, since it is smaller than the sum of its proper divisors (492128058).

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

490886646 is a wasteful number, since it uses less digits than its factorization.

490886646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103455.

The product of its (nonzero) digits is 1990656, while the sum is 51.

The square root of 490886646 is about 22155.9618613140. The cubic root of 490886646 is about 788.8487455853.

The spelling of 490886646 in words is "four hundred ninety million, eight hundred eighty-six thousand, six hundred forty-six".