2243344561 has 8 divisors (see below), whose sum is σ = 2377305000. Its totient is φ = 2113157760.

The previous prime is 2243344553. The next prime is 2243344651. The reversal of 2243344561 is 1654433422.

2243344561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2742336 + 2240602225 = 1656^2 + 47335^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2243344561 - 2³ = 2243344553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243344541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942186 + ... + 944563.

It is an arithmetic number, because the mean of its divisors is an integer number (297163125).

Almost surely, 2^2243344561 is an apocalyptic number.

It is an amenable number.

2243344561 is a deficient number, since it is larger than the sum of its proper divisors (133960439).

2243344561 is a wasteful number, since it uses less digits than its factorization.

2243344561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886819.

The product of its digits is 69120, while the sum is 34.

The square root of 2243344561 is about 47363.9584599936. The cubic root of 2243344561 is about 1309.0774074276.

Adding to 2243344561 its reverse (1654433422), we get a palindrome (3897777983).

The spelling of 2243344561 in words is "two billion, two hundred forty-three million, three hundred forty-four thousand, five hundred sixty-one".