494838864 has 120 divisors (see below), whose sum is σ = 1539679232. Its totient is φ = 147329280.

The previous prime is 494838853. The next prime is 494838887. The reversal of 494838864 is 468838494.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 494838864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53769 + ... + 62295.

Almost surely, 2^494838864 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 494838864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (769839616).

494838864 is an abundant number, since it is smaller than the sum of its proper divisors (1044840368).

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

494838864 is a wasteful number, since it uses less digits than its factorization.

494838864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8585 (or 8576 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 54.

The square root of 494838864 is about 22244.9739042328. The cubic root of 494838864 is about 790.9601443497.

The spelling of 494838864 in words is "four hundred ninety-four million, eight hundred thirty-eight thousand, eight hundred sixty-four".