1238808799 has 2 divisors, whose sum is σ = 1238808800. Its totient is φ = 1238808798.

The previous prime is 1238808793. The next prime is 1238808811. The reversal of 1238808799 is 9978088321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1238808799 - 2⁷ = 1238808671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1238808793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619404399 + 619404400.

It is an arithmetic number, because the mean of its divisors is an integer number (619404400).

Almost surely, 2^1238808799 is an apocalyptic number.

1238808799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238808799 is an equidigital number, since it uses as much as digits as its factorization.

1238808799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The square root of 1238808799 is about 35196.7157416711. The cubic root of 1238808799 is about 1073.9929415782.

The spelling of 1238808799 in words is "one billion, two hundred thirty-eight million, eight hundred eight thousand, seven hundred ninety-nine".