244961819 has 2 divisors, whose sum is σ = 244961820. Its totient is φ = 244961818.

The previous prime is 244961767. The next prime is 244961831. The reversal of 244961819 is 918169442.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244961819 is a prime.

It is a super-2 number, since 2×244961819² = 120012585535577522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 244961819.

It is not a weakly prime, because it can be changed into another prime (244961419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122480909 + 122480910.

It is an arithmetic number, because the mean of its divisors is an integer number (122480910).

Almost surely, 2^244961819 is an apocalyptic number.

244961819 is a deficient number, since it is larger than the sum of its proper divisors (1).

244961819 is an equidigital number, since it uses as much as digits as its factorization.

244961819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 44.

The square root of 244961819 is about 15651.2561476707. The cubic root of 244961819 is about 625.6999679924.

The spelling of 244961819 in words is "two hundred forty-four million, nine hundred sixty-one thousand, eight hundred nineteen".