244666619 has 2 divisors, whose sum is σ = 244666620. Its totient is φ = 244666618.

The previous prime is 244666613. The next prime is 244666651. The reversal of 244666619 is 916666442.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244666619 is a prime.

It is a super-2 number, since 2×244666619² = 119723508905782322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 244666619.

It is not a weakly prime, because it can be changed into another prime (244666613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122333309 + 122333310.

It is an arithmetic number, because the mean of its divisors is an integer number (122333310).

Almost surely, 2^244666619 is an apocalyptic number.

244666619 is a deficient number, since it is larger than the sum of its proper divisors (1).

244666619 is an equidigital number, since it uses as much as digits as its factorization.

244666619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 44.

The square root of 244666619 is about 15641.8227518407. The cubic root of 244666619 is about 625.4485262551.

The spelling of 244666619 in words is "two hundred forty-four million, six hundred sixty-six thousand, six hundred nineteen".