490887278 has 16 divisors (see below), whose sum is σ = 842006880. Its totient is φ = 210258816.

The previous prime is 490887239. The next prime is 490887281. The reversal of 490887278 is 872788094.

It is a happy number.

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, 17618 + ... + 35946.

It is an arithmetic number, because the mean of its divisors is an integer number (52625430).

Almost surely, 2^490887278 is an apocalyptic number.

490887278 is a deficient number, since it is larger than the sum of its proper divisors (351119602).

490887278 is a wasteful number, since it uses less digits than its factorization.

490887278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20251.

The product of its (nonzero) digits is 1806336, while the sum is 53.

The square root of 490887278 is about 22155.9761238362. The cubic root of 490887278 is about 788.8490841238.

The spelling of 490887278 in words is "four hundred ninety million, eight hundred eighty-seven thousand, two hundred seventy-eight".