244990819 has 2 divisors, whose sum is σ = 244990820. Its totient is φ = 244990818.

The previous prime is 244990817. The next prime is 244990853. The reversal of 244990819 is 918099442.

244990819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 244990819 - 2¹ = 244990817 is a prime.

It is a super-2 number, since 2×244990819² = 120041002788581522, which contains 22 as substring.

Together with 244990817, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (244990817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122495409 + 122495410.

It is an arithmetic number, because the mean of its divisors is an integer number (122495410).

Almost surely, 2^244990819 is an apocalyptic number.

244990819 is a deficient number, since it is larger than the sum of its proper divisors (1).

244990819 is an equidigital number, since it uses as much as digits as its factorization.

244990819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 244990819 is about 15652.1825634638. The cubic root of 244990819 is about 625.7246583477.

The spelling of 244990819 in words is "two hundred forty-four million, nine hundred ninety thousand, eight hundred nineteen".