494088660 has 240 divisors, whose sum is σ = 1728896400. Its totient is φ = 117282816.

The previous prime is 494088649. The next prime is 494088671. The reversal of 494088660 is 66880494.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (494088649) and next prime (494088671).

It can be written as a sum of positive squares in 8 ways, for example, as 715716 + 493372944 = 846^2 + 22212^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 610336 + ... + 611144.

It is an arithmetic number, because the mean of its divisors is an integer number (7203735).

Almost surely, 2^494088660 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 494088660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864448200).

494088660 is an abundant number, since it is smaller than the sum of its proper divisors (1234807740).

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

494088660 is a wasteful number, since it uses less digits than its factorization.

494088660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 861 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 494088660 is about 22228.1051824036. The cubic root of 494088660 is about 790.5602285880.

The spelling of 494088660 in words is "four hundred ninety-four million, eighty-eight thousand, six hundred sixty".