244743281 has 2 divisors, whose sum is σ = 244743282. Its totient is φ = 244743280.

The previous prime is 244743223. The next prime is 244743287. The reversal of 244743281 is 182347442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244640881 + 102400 = 15641^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 244743281 - 2²² = 240548977 is a prime.

It is a super-2 number, since 2×244743281² = 119798547189289922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (244743287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122371640 + 122371641.

It is an arithmetic number, because the mean of its divisors is an integer number (122371641).

Almost surely, 2^244743281 is an apocalyptic number.

It is an amenable number.

244743281 is a deficient number, since it is larger than the sum of its proper divisors (1).

244743281 is an equidigital number, since it uses as much as digits as its factorization.

244743281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 35.

The square root of 244743281 is about 15644.2731055169. The cubic root of 244743281 is about 625.5138438807.

The spelling of 244743281 in words is "two hundred forty-four million, seven hundred forty-three thousand, two hundred eighty-one".