493384140 has 72 divisors (see below), whose sum is σ = 1510388880. Its totient is φ = 130356864.

The previous prime is 493384139. The next prime is 493384187. The reversal of 493384140 is 41483394.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 493384095 and 493384104.

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, 7047 + ... + 32193.

Almost surely, 2^493384140 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 493384140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (755194440).

493384140 is an abundant number, since it is smaller than the sum of its proper divisors (1017004740).

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

493384140 is a wasteful number, since it uses less digits than its factorization.

493384140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25271 (or 25266 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 493384140 is about 22212.2520245022. The cubic root of 493384140 is about 790.1842971189.

The spelling of 493384140 in words is "four hundred ninety-three million, three hundred eighty-four thousand, one hundred forty".