244291391 has 2 divisors, whose sum is σ = 244291392. Its totient is φ = 244291390.

The previous prime is 244291373. The next prime is 244291409. The reversal of 244291391 is 193192442.

It is a balanced prime because it is at equal distance from previous prime (244291373) and next prime (244291409).

It is a cyclic number.

It is not a de Polignac number, because 244291391 - 2²² = 240097087 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244291321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122145695 + 122145696.

It is an arithmetic number, because the mean of its divisors is an integer number (122145696).

Almost surely, 2^244291391 is an apocalyptic number.

244291391 is a deficient number, since it is larger than the sum of its proper divisors (1).

244291391 is an equidigital number, since it uses as much as digits as its factorization.

244291391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 244291391 is about 15629.8237674006. The cubic root of 244291391 is about 625.1286271796.

The spelling of 244291391 in words is "two hundred forty-four million, two hundred ninety-one thousand, three hundred ninety-one".