494578992 has 80 divisors (see below), whose sum is σ = 1341699840. Its totient is φ = 156769536.

The previous prime is 494578967. The next prime is 494578993. The reversal of 494578992 is 299875494.

It is not an unprimeable number, because it can be changed into a prime (494578993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90613 + ... + 95915.

It is an arithmetic number, because the mean of its divisors is an integer number (16771248).

Almost surely, 2^494578992 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 494578992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (670849920).

494578992 is an abundant number, since it is smaller than the sum of its proper divisors (847120848).

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

494578992 is a wasteful number, since it uses less digits than its factorization.

494578992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5410 (or 5404 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The square root of 494578992 is about 22239.1319974499. The cubic root of 494578992 is about 790.8216586039.

The spelling of 494578992 in words is "four hundred ninety-four million, five hundred seventy-eight thousand, nine hundred ninety-two".