494781020 has 24 divisors (see below), whose sum is σ = 1067123904. Its totient is φ = 192563136.

The previous prime is 494781019. The next prime is 494781043. The reversal of 494781020 is 20187494.

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 7 ways as a sum of consecutive naturals, for example, 333572 + ... + 335051.

It is an arithmetic number, because the mean of its divisors is an integer number (44463496).

Almost surely, 2^494781020 is an apocalyptic number.

It is an amenable number.

494781020 is an abundant number, since it is smaller than the sum of its proper divisors (572342884).

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

494781020 is a wasteful number, since it uses less digits than its factorization.

494781020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668669 (or 668667 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 494781020 is about 22243.6737073713. The cubic root of 494781020 is about 790.9293234874.

The spelling of 494781020 in words is "four hundred ninety-four million, seven hundred eighty-one thousand, twenty".