2493340391 has 2 divisors, whose sum is σ = 2493340392. Its totient is φ = 2493340390.

The previous prime is 2493340387. The next prime is 2493340403. The reversal of 2493340391 is 1930433942.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2493340391 - 2² = 2493340387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2493340351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1246670195 + 1246670196.

It is an arithmetic number, because the mean of its divisors is an integer number (1246670196).

Almost surely, 2^2493340391 is an apocalyptic number.

2493340391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2493340391 is an equidigital number, since it uses as much as digits as its factorization.

2493340391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 2493340391 is about 49933.3595004382. The cubic root of 2493340391 is about 1356.0026059518.

The spelling of 2493340391 in words is "two billion, four hundred ninety-three million, three hundred forty thousand, three hundred ninety-one".