2340623657 has 2 divisors, whose sum is σ = 2340623658. Its totient is φ = 2340623656.

The previous prime is 2340623617. The next prime is 2340623693. The reversal of 2340623657 is 7563260432.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1732557376 + 608066281 = 41624^2 + 24659^2 .

It is a cyclic number.

It is not a de Polignac number, because 2340623657 - 2¹⁰ = 2340622633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2340623657.

It is not a weakly prime, because it can be changed into another prime (2340623617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1170311828 + 1170311829.

It is an arithmetic number, because the mean of its divisors is an integer number (1170311829).

Almost surely, 2^2340623657 is an apocalyptic number.

It is an amenable number.

2340623657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2340623657 is an equidigital number, since it uses as much as digits as its factorization.

2340623657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 38.

The square root of 2340623657 is about 48379.9923212065. The cubic root of 2340623657 is about 1327.7323290857.

The spelling of 2340623657 in words is "two billion, three hundred forty million, six hundred twenty-three thousand, six hundred fifty-seven".