244340387 has 2 divisors, whose sum is σ = 244340388. Its totient is φ = 244340386.

The previous prime is 244340363. The next prime is 244340461. The reversal of 244340387 is 783043442.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244340387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (244340347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122170193 + 122170194.

It is an arithmetic number, because the mean of its divisors is an integer number (122170194).

Almost surely, 2^244340387 is an apocalyptic number.

244340387 is a deficient number, since it is larger than the sum of its proper divisors (1).

244340387 is an equidigital number, since it uses as much as digits as its factorization.

244340387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 35.

The square root of 244340387 is about 15631.3910769323. The cubic root of 244340387 is about 625.1704171019.

The spelling of 244340387 in words is "two hundred forty-four million, three hundred forty thousand, three hundred eighty-seven".