244422397 has 2 divisors, whose sum is σ = 244422398. Its totient is φ = 244422396.

The previous prime is 244422389. The next prime is 244422421. The reversal of 244422397 is 793224442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244421956 + 441 = 15634^2 + 21^2 .

It is a cyclic number.

It is not a de Polignac number, because 244422397 - 2³ = 244422389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244422317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122211198 + 122211199.

It is an arithmetic number, because the mean of its divisors is an integer number (122211199).

Almost surely, 2^244422397 is an apocalyptic number.

It is an amenable number.

244422397 is a deficient number, since it is larger than the sum of its proper divisors (1).

244422397 is an equidigital number, since it uses as much as digits as its factorization.

244422397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 37.

The square root of 244422397 is about 15634.0141038698. The cubic root of 244422397 is about 625.2403529969.

The spelling of 244422397 in words is "two hundred forty-four million, four hundred twenty-two thousand, three hundred ninety-seven".