2340638497 has 2 divisors, whose sum is σ = 2340638498. Its totient is φ = 2340638496.

The previous prime is 2340638491. The next prime is 2340638543. The reversal of 2340638497 is 7948360432.

It is an a-pointer prime, because the next prime (2340638543) can be obtained adding 2340638497 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1382054976 + 958583521 = 37176^2 + 30961^2 .

It is a cyclic number.

It is not a de Polignac number, because 2340638497 - 2⁷ = 2340638369 is a prime.

It is not a weakly prime, because it can be changed into another prime (2340638491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1170319248 + 1170319249.

It is an arithmetic number, because the mean of its divisors is an integer number (1170319249).

Almost surely, 2^2340638497 is an apocalyptic number.

It is an amenable number.

2340638497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2340638497 is an equidigital number, since it uses as much as digits as its factorization.

2340638497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 46.

The square root of 2340638497 is about 48380.1456901486. The cubic root of 2340638497 is about 1327.7351351051.

The spelling of 2340638497 in words is "two billion, three hundred forty million, six hundred thirty-eight thousand, four hundred ninety-seven".