244123409 has 2 divisors, whose sum is σ = 244123410. Its totient is φ = 244123408.

The previous prime is 244123393. The next prime is 244123433. The reversal of 244123409 is 904321442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236544400 + 7579009 = 15380^2 + 2753^2 .

It is a cyclic number.

It is not a de Polignac number, because 244123409 - 2⁴ = 244123393 is a prime.

It is not a weakly prime, because it can be changed into another prime (244123469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122061704 + 122061705.

It is an arithmetic number, because the mean of its divisors is an integer number (122061705).

Almost surely, 2^244123409 is an apocalyptic number.

It is an amenable number.

244123409 is a deficient number, since it is larger than the sum of its proper divisors (1).

244123409 is an equidigital number, since it uses as much as digits as its factorization.

244123409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 244123409 is about 15624.4490782875. The cubic root of 244123409 is about 624.9853086680.

The spelling of 244123409 in words is "two hundred forty-four million, one hundred twenty-three thousand, four hundred nine".