244520039 has 2 divisors, whose sum is σ = 244520040. Its totient is φ = 244520038.

The previous prime is 244520021. The next prime is 244520041. The reversal of 244520039 is 930025442.

244520039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 244520039 - 2²⁰ = 243471463 is a prime.

Together with 244520041, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 244519993 and 244520020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244520099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122260019 + 122260020.

It is an arithmetic number, because the mean of its divisors is an integer number (122260020).

Almost surely, 2^244520039 is an apocalyptic number.

244520039 is a deficient number, since it is larger than the sum of its proper divisors (1).

244520039 is an equidigital number, since it uses as much as digits as its factorization.

244520039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 244520039 is about 15637.1365345449. The cubic root of 244520039 is about 625.3235990383.

The spelling of 244520039 in words is "two hundred forty-four million, five hundred twenty thousand, thirty-nine".