494393280 has 112 divisors (see below), whose sum is σ = 1638019584. Its totient is φ = 126100480.

The previous prime is 494393261. The next prime is 494393287. The reversal of 494393280 is 82393494.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494393287) 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, 10885 + ... + 33275.

Almost surely, 2^494393280 is an apocalyptic number.

494393280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494393280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (819009792).

494393280 is an abundant number, since it is smaller than the sum of its proper divisors (1143626304).

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

494393280 is a wasteful number, since it uses less digits than its factorization.

494393280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22434 (or 22424 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 494393280 is about 22234.9562626060. The cubic root of 494393280 is about 790.7226629865.

The spelling of 494393280 in words is "four hundred ninety-four million, three hundred ninety-three thousand, two hundred eighty".