2243020445 has 4 divisors (see below), whose sum is σ = 2691624540. Its totient is φ = 1794416352.

The previous prime is 2243020393. The next prime is 2243020459. The reversal of 2243020445 is 5440203422.

It is a happy number.

2243020445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 649893049 + 1593127396 = 25493^2 + 39914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2243020445 is a prime.

It is a super-2 number, since 2×2243020445² = 10062281433375996050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224302040 + ... + 224302049.

It is an arithmetic number, because the mean of its divisors is an integer number (672906135).

Almost surely, 2^2243020445 is an apocalyptic number.

It is an amenable number.

2243020445 is a deficient number, since it is larger than the sum of its proper divisors (448604095).

2243020445 is an equidigital number, since it uses as much as digits as its factorization.

2243020445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448604094.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 2243020445 is about 47360.5367896100. The cubic root of 2243020445 is about 1309.0143596943.

Adding to 2243020445 its reverse (5440203422), we get a palindrome (7683223867).

It can be divided in two parts, 22430 and 20445, that added together give a cube (42875 = 35³).

The spelling of 2243020445 in words is "two billion, two hundred forty-three million, twenty thousand, four hundred forty-five".