220844243 has 2 divisors, whose sum is σ = 220844244. Its totient is φ = 220844242.

The previous prime is 220844219. The next prime is 220844347. The reversal of 220844243 is 342448022.

It is a happy number.

220844243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220844243 - 2⁶ = 220844179 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (220844443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110422121 + 110422122.

It is an arithmetic number, because the mean of its divisors is an integer number (110422122).

Almost surely, 2^220844243 is an apocalyptic number.

220844243 is a deficient number, since it is larger than the sum of its proper divisors (1).

220844243 is an equidigital number, since it uses as much as digits as its factorization.

220844243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 220844243 is about 14860.8291491424. The cubic root of 220844243 is about 604.4522903171.

The spelling of 220844243 in words is "two hundred twenty million, eight hundred forty-four thousand, two hundred forty-three".