2244451445 has 4 divisors (see below), whose sum is σ = 2693341740. Its totient is φ = 1795561152.

The previous prime is 2244451441. The next prime is 2244451453. The reversal of 2244451445 is 5441544422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1086954961 + 1157496484 = 32969^2 + 34022^2 .

It is a cyclic number.

It is not a de Polignac number, because 2244451445 - 2² = 2244451441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2244451441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224445140 + ... + 224445149.

It is an arithmetic number, because the mean of its divisors is an integer number (673335435).

Almost surely, 2^2244451445 is an apocalyptic number.

It is an amenable number.

2244451445 is a deficient number, since it is larger than the sum of its proper divisors (448890295).

2244451445 is an equidigital number, since it uses as much as digits as its factorization.

2244451445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448890294.

The product of its digits is 102400, while the sum is 35.

The square root of 2244451445 is about 47375.6418953875. The cubic root of 2244451445 is about 1309.2926750852.

Adding to 2244451445 its reverse (5441544422), we get a palindrome (7685995867).

The spelling of 2244451445 in words is "two billion, two hundred forty-four million, four hundred fifty-one thousand, four hundred forty-five".