494240660 has 48 divisors (see below), whose sum is σ = 1114068816. Its totient is φ = 183508992.

The previous prime is 494240653. The next prime is 494240671. The reversal of 494240660 is 66042494.

It can be written as a sum of positive squares in 8 ways, for example, as 20830096 + 473410564 = 4564^2 + 21758^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 494240660.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14864 + ... + 34776.

It is an arithmetic number, because the mean of its divisors is an integer number (23209767).

Almost surely, 2^494240660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494240660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557034408).

494240660 is an abundant number, since it is smaller than the sum of its proper divisors (619828156).

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

494240660 is a wasteful number, since it uses less digits than its factorization.

494240660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20012 (or 20010 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 494240660 is about 22231.5240143360. The cubic root of 494240660 is about 790.6412888269.

The spelling of 494240660 in words is "four hundred ninety-four million, two hundred forty thousand, six hundred sixty".