244407881 has 2 divisors, whose sum is σ = 244407882. Its totient is φ = 244407880.

The previous prime is 244407851. The next prime is 244407923. The reversal of 244407881 is 188704442.

It is a happy number.

244407881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204919225 + 39488656 = 14315^2 + 6284^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244407881 is a prime.

It is a super-2 number, since 2×244407881² = 119470424589820322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (244407851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122203940 + 122203941.

It is an arithmetic number, because the mean of its divisors is an integer number (122203941).

Almost surely, 2^244407881 is an apocalyptic number.

It is an amenable number.

244407881 is a deficient number, since it is larger than the sum of its proper divisors (1).

244407881 is an equidigital number, since it uses as much as digits as its factorization.

244407881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57344, while the sum is 38.

The square root of 244407881 is about 15633.5498528005. The cubic root of 244407881 is about 625.2279752869.

The spelling of 244407881 in words is "two hundred forty-four million, four hundred seven thousand, eight hundred eighty-one".