244441781 has 2 divisors, whose sum is σ = 244441782. Its totient is φ = 244441780.

The previous prime is 244441739. The next prime is 244441787. The reversal of 244441781 is 187144442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219780625 + 24661156 = 14825^2 + 4966^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244441781 is a prime.

It is a super-2 number, since 2×244441781² = 119503568596903922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244441787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122220890 + 122220891.

It is an arithmetic number, because the mean of its divisors is an integer number (122220891).

Almost surely, 2^244441781 is an apocalyptic number.

It is an amenable number.

244441781 is a deficient number, since it is larger than the sum of its proper divisors (1).

244441781 is an equidigital number, since it uses as much as digits as its factorization.

244441781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28672, while the sum is 35.

The square root of 244441781 is about 15634.6340219399. The cubic root of 244441781 is about 625.2568808584.

The spelling of 244441781 in words is "two hundred forty-four million, four hundred forty-one thousand, seven hundred eighty-one".