2493942317 has 4 divisors (see below), whose sum is σ = 2496522336. Its totient is φ = 2491362300.

The previous prime is 2493942293. The next prime is 2493942359. The reversal of 2493942317 is 7132493942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2493942317 - 2²² = 2489748013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2493942397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1288559 + ... + 1290492.

It is an arithmetic number, because the mean of its divisors is an integer number (624130584).

Almost surely, 2^2493942317 is an apocalyptic number.

It is an amenable number.

2493942317 is a deficient number, since it is larger than the sum of its proper divisors (2580019).

2493942317 is an equidigital number, since it uses as much as digits as its factorization.

2493942317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580018.

The product of its digits is 326592, while the sum is 44.

The square root of 2493942317 is about 49939.3864299513. The cubic root of 2493942317 is about 1356.1117162783. Note that the first 3 decimals are identical.

The spelling of 2493942317 in words is "two billion, four hundred ninety-three million, nine hundred forty-two thousand, three hundred seventeen".