2243444106437 has 2 divisors, whose sum is σ = 2243444106438. Its totient is φ = 2243444106436.

The previous prime is 2243444106433. The next prime is 2243444106467. The reversal of 2243444106437 is 7346014443422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1568941625476 + 674502480961 = 1252574^2 + 821281^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243444106437 - 2² = 2243444106433 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2243444106433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121722053218 + 1121722053219.

It is an arithmetic number, because the mean of its divisors is an integer number (1121722053219).

Almost surely, 2^{2243444106437} is an apocalyptic number.

It is an amenable number.

2243444106437 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243444106437 is an equidigital number, since it uses as much as digits as its factorization.

2243444106437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 44.

Adding to 2243444106437 its reverse (7346014443422), we get a palindrome (9589458549859).

The spelling of 2243444106437 in words is "two trillion, two hundred forty-three billion, four hundred forty-four million, one hundred six thousand, four hundred thirty-seven".