220339841 has 2 divisors, whose sum is σ = 220339842. Its totient is φ = 220339840.

The previous prime is 220339817. The next prime is 220339843. The reversal of 220339841 is 148933022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214915600 + 5424241 = 14660^2 + 2329^2 .

It is a cyclic number.

It is not a de Polignac number, because 220339841 - 2¹⁰ = 220338817 is a prime.

Together with 220339843, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 220339798 and 220339807.

It is not a weakly prime, because it can be changed into another prime (220339843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110169920 + 110169921.

It is an arithmetic number, because the mean of its divisors is an integer number (110169921).

Almost surely, 2^220339841 is an apocalyptic number.

It is an amenable number.

220339841 is a deficient number, since it is larger than the sum of its proper divisors (1).

220339841 is an equidigital number, since it uses as much as digits as its factorization.

220339841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 220339841 is about 14843.8485912515. The cubic root of 220339841 is about 603.9917555488.

The spelling of 220339841 in words is "two hundred twenty million, three hundred thirty-nine thousand, eight hundred forty-one".