2243644081 has 8 divisors (see below), whose sum is σ = 2564452800. Its totient is φ = 1922907408.

The previous prime is 2243644031. The next prime is 2243644087. The reversal of 2243644081 is 1804463422.

2243644081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2243644081 - 2¹¹ = 2243642033 is a prime.

It is a super-2 number, since 2×2243644081² = 10067877524412669122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2243644087) 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, 102495 + ... + 122443.

It is an arithmetic number, because the mean of its divisors is an integer number (320556600).

Almost surely, 2^2243644081 is an apocalyptic number.

It is an amenable number.

2243644081 is a deficient number, since it is larger than the sum of its proper divisors (320808719).

2243644081 is a wasteful number, since it uses less digits than its factorization.

2243644081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36023.

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 2243644081 is about 47367.1202523438. The cubic root of 2243644081 is about 1309.1356652959.

The spelling of 2243644081 in words is "two billion, two hundred forty-three million, six hundred forty-four thousand, eighty-one".