240208427839 has 2 divisors, whose sum is σ = 240208427840. Its totient is φ = 240208427838.

The previous prime is 240208427831. The next prime is 240208427843. The reversal of 240208427839 is 938724802042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240208427839 - 2³ = 240208427831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 240208427792 and 240208427801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240208427831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120104213919 + 120104213920.

It is an arithmetic number, because the mean of its divisors is an integer number (120104213920).

Almost surely, 2^240208427839 is an apocalyptic number.

240208427839 is a deficient number, since it is larger than the sum of its proper divisors (1).

240208427839 is an equidigital number, since it uses as much as digits as its factorization.

240208427839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 240208427839 in words is "two hundred forty billion, two hundred eight million, four hundred twenty-seven thousand, eight hundred thirty-nine".