244411021 has 2 divisors, whose sum is σ = 244411022. Its totient is φ = 244411020.

The previous prime is 244411019. The next prime is 244411033. The reversal of 244411021 is 120114442.

244411021 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 can be written as a sum of positive squares in only one way, i.e., 123520996 + 120890025 = 11114^2 + 10995^2 .

It is a cyclic number.

It is not a de Polignac number, because 244411021 - 2¹ = 244411019 is a prime.

Together with 244411019, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 244411021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244411001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122205510 + 122205511.

It is an arithmetic number, because the mean of its divisors is an integer number (122205511).

Almost surely, 2^244411021 is an apocalyptic number.

It is an amenable number.

244411021 is a deficient number, since it is larger than the sum of its proper divisors (1).

244411021 is an equidigital number, since it uses as much as digits as its factorization.

244411021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 244411021 is about 15633.6502775264. The cubic root of 244411021 is about 625.2306527884.

Adding to 244411021 its reverse (120114442), we get a palindrome (364525463).

The spelling of 244411021 in words is "two hundred forty-four million, four hundred eleven thousand, twenty-one".