2638023439 has 2 divisors, whose sum is σ = 2638023440. Its totient is φ = 2638023438.

The previous prime is 2638023413. The next prime is 2638023463. The reversal of 2638023439 is 9343208362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2638023439 - 2⁵ = 2638023407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2638023499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319011719 + 1319011720.

It is an arithmetic number, because the mean of its divisors is an integer number (1319011720).

Almost surely, 2^2638023439 is an apocalyptic number.

2638023439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2638023439 is an equidigital number, since it uses as much as digits as its factorization.

2638023439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 2638023439 is about 51361.6923299846. The cubic root of 2638023439 is about 1381.7396388493.

The spelling of 2638023439 in words is "two billion, six hundred thirty-eight million, twenty-three thousand, four hundred thirty-nine".