493797318 has 64 divisors (see below), whose sum is σ = 1159592448. Its totient is φ = 137272320.

The previous prime is 493797313. The next prime is 493797319. The reversal of 493797318 is 813797394.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493797313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247521 + ... + 249507.

It is an arithmetic number, because the mean of its divisors is an integer number (18118632).

Almost surely, 2^493797318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 493797318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (579796224).

493797318 is an abundant number, since it is smaller than the sum of its proper divisors (665795130).

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

493797318 is a wasteful number, since it uses less digits than its factorization.

493797318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157.

The product of its digits is 1143072, while the sum is 51.

The square root of 493797318 is about 22221.5507559666. The cubic root of 493797318 is about 790.4048120254.

The spelling of 493797318 in words is "four hundred ninety-three million, seven hundred ninety-seven thousand, three hundred eighteen".