244466639 has 2 divisors, whose sum is σ = 244466640. Its totient is φ = 244466638.

The previous prime is 244466611. The next prime is 244466737. The reversal of 244466639 is 936664442.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244466639 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 244466639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244460639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122233319 + 122233320.

It is an arithmetic number, because the mean of its divisors is an integer number (122233320).

Almost surely, 2^244466639 is an apocalyptic number.

244466639 is a deficient number, since it is larger than the sum of its proper divisors (1).

244466639 is an equidigital number, since it uses as much as digits as its factorization.

244466639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 44.

The square root of 244466639 is about 15635.4289675723. The cubic root of 244466639 is about 625.2780748740.

The spelling of 244466639 in words is "two hundred forty-four million, four hundred sixty-six thousand, six hundred thirty-nine".