2042640599 has 2 divisors, whose sum is σ = 2042640600. Its totient is φ = 2042640598.

The previous prime is 2042640577. The next prime is 2042640601. The reversal of 2042640599 is 9950462402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2042640599 - 2⁸ = 2042640343 is a prime.

It is a Sophie Germain prime.

Together with 2042640601, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2042640199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021320299 + 1021320300.

It is an arithmetic number, because the mean of its divisors is an integer number (1021320300).

Almost surely, 2^2042640599 is an apocalyptic number.

2042640599 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042640599 is an equidigital number, since it uses as much as digits as its factorization.

2042640599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 2042640599 is about 45195.5816313940. The cubic root of 2042640599 is about 1268.8121240371.

The spelling of 2042640599 in words is "two billion, forty-two million, six hundred forty thousand, five hundred ninety-nine".