244447969 has 2 divisors, whose sum is σ = 244447970. Its totient is φ = 244447968.

The previous prime is 244447909. The next prime is 244447993. The reversal of 244447969 is 969744442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170694225 + 73753744 = 13065^2 + 8588^2 .

It is a cyclic number.

It is not a de Polignac number, because 244447969 - 2¹³ = 244439777 is a prime.

It is a super-2 number, since 2×244447969² = 119509619096449922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (244447909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122223984 + 122223985.

It is an arithmetic number, because the mean of its divisors is an integer number (122223985).

Almost surely, 2^244447969 is an apocalyptic number.

It is an amenable number.

244447969 is a deficient number, since it is larger than the sum of its proper divisors (1).

244447969 is an equidigital number, since it uses as much as digits as its factorization.

244447969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 49.

The square root of 244447969 is about 15634.8319146705. The cubic root of 244447969 is about 625.2621569026.

The spelling of 244447969 in words is "two hundred forty-four million, four hundred forty-seven thousand, nine hundred sixty-nine".