494589812 has 6 divisors (see below), whose sum is σ = 865532178. Its totient is φ = 247294904.

The previous prime is 494589811. The next prime is 494589839. The reversal of 494589812 is 218985494.

It can be written as a sum of positive squares in only one way, i.e., 397842916 + 96746896 = 19946^2 + 9836^2 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494589811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61823723 + ... + 61823730.

It is an arithmetic number, because the mean of its divisors is an integer number (144255363).

Almost surely, 2^494589812 is an apocalyptic number.

It is an amenable number.

494589812 is a deficient number, since it is larger than the sum of its proper divisors (370942366).

494589812 is a wasteful number, since it uses less digits than its factorization.

494589812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123647457 (or 123647455 counting only the distinct ones).

The product of its digits is 829440, while the sum is 50.

The square root of 494589812 is about 22239.3752610095. The cubic root of 494589812 is about 790.8274255478.

The spelling of 494589812 in words is "four hundred ninety-four million, five hundred eighty-nine thousand, eight hundred twelve".