220233449 has 2 divisors, whose sum is σ = 220233450. Its totient is φ = 220233448.

The previous prime is 220233383. The next prime is 220233451. The reversal of 220233449 is 944332022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213306025 + 6927424 = 14605^2 + 2632^2 .

It is a cyclic number.

It is not a de Polignac number, because 220233449 - 2¹² = 220229353 is a prime.

It is a Sophie Germain prime.

Together with 220233451, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (220233479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110116724 + 110116725.

It is an arithmetic number, because the mean of its divisors is an integer number (110116725).

Almost surely, 2^220233449 is an apocalyptic number.

It is an amenable number.

220233449 is a deficient number, since it is larger than the sum of its proper divisors (1).

220233449 is an equidigital number, since it uses as much as digits as its factorization.

220233449 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 220233449 is about 14840.2644518216. The cubic root of 220233449 is about 603.8945265954.

The spelling of 220233449 in words is "two hundred twenty million, two hundred thirty-three thousand, four hundred forty-nine".