244220069 has 2 divisors, whose sum is σ = 244220070. Its totient is φ = 244220068.

The previous prime is 244220023. The next prime is 244220071. The reversal of 244220069 is 960022442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218596225 + 25623844 = 14785^2 + 5062^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244220069 is a prime.

It is a super-2 number, since 2×244220069² = 119286884204729522, which contains 22 as substring.

Together with 244220071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244220269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122110034 + 122110035.

It is an arithmetic number, because the mean of its divisors is an integer number (122110035).

Almost surely, 2^244220069 is an apocalyptic number.

It is an amenable number.

244220069 is a deficient number, since it is larger than the sum of its proper divisors (1).

244220069 is an equidigital number, since it uses as much as digits as its factorization.

244220069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 244220069 is about 15627.5420012234. The cubic root of 244220069 is about 625.0677848614.

The spelling of 244220069 in words is "two hundred forty-four million, two hundred twenty thousand, sixty-nine".