490434678 has 24 divisors (see below), whose sum is σ = 1074551400. Its totient is φ = 161640864.

The previous prime is 490434653. The next prime is 490434713. The reversal of 490434678 is 876434094.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151468 + ... + 154671.

It is an arithmetic number, because the mean of its divisors is an integer number (44772975).

Almost surely, 2^490434678 is an apocalyptic number.

490434678 is an abundant number, since it is smaller than the sum of its proper divisors (584116722).

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

490434678 is a wasteful number, since it uses less digits than its factorization.

490434678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306236 (or 306233 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 490434678 is about 22145.7598198843. The cubic root of 490434678 is about 788.6065689231.

The spelling of 490434678 in words is "four hundred ninety million, four hundred thirty-four thousand, six hundred seventy-eight".