244790239 has 2 divisors, whose sum is σ = 244790240. Its totient is φ = 244790238.

The previous prime is 244790209. The next prime is 244790251. The reversal of 244790239 is 932097442.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244790239 is a prime.

It is a super-2 number, since 2×244790239² = 119844522219354242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244790209) 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, 122395119 + 122395120.

It is an arithmetic number, because the mean of its divisors is an integer number (122395120).

Almost surely, 2^244790239 is an apocalyptic number.

244790239 is a deficient number, since it is larger than the sum of its proper divisors (1).

244790239 is an equidigital number, since it uses as much as digits as its factorization.

244790239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 244790239 is about 15645.7738383245. The cubic root of 244790239 is about 625.5538463418.

The spelling of 244790239 in words is "two hundred forty-four million, seven hundred ninety thousand, two hundred thirty-nine".