220433249 has 2 divisors, whose sum is σ = 220433250. Its totient is φ = 220433248.

The previous prime is 220433197. The next prime is 220433251. The reversal of 220433249 is 942334022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196000000 + 24433249 = 14000^2 + 4943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220433249 is a prime.

Together with 220433251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220433299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110216624 + 110216625.

It is an arithmetic number, because the mean of its divisors is an integer number (110216625).

Almost surely, 2^220433249 is an apocalyptic number.

It is an amenable number.

220433249 is a deficient number, since it is larger than the sum of its proper divisors (1).

220433249 is an equidigital number, since it uses as much as digits as its factorization.

220433249 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 29.

The square root of 220433249 is about 14846.9946117051. The cubic root of 220433249 is about 604.0770929548.

It can be divided in two parts, 2204 and 33249, that added together give a palindrome (35453).

The spelling of 220433249 in words is "two hundred twenty million, four hundred thirty-three thousand, two hundred forty-nine".