220300989 has 4 divisors (see below), whose sum is σ = 293734656. Its totient is φ = 146867324.

The previous prime is 220300939. The next prime is 220300999. The reversal of 220300989 is 989003022.

220300989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220300989 - 2¹² = 220296893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220300939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36716829 + ... + 36716834.

It is an arithmetic number, because the mean of its divisors is an integer number (73433664).

Almost surely, 2^220300989 is an apocalyptic number.

It is an amenable number.

220300989 is a deficient number, since it is larger than the sum of its proper divisors (73433667).

220300989 is an equidigital number, since it uses as much as digits as its factorization.

220300989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73433666.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 220300989 is about 14842.5398433018. The cubic root of 220300989 is about 603.9562533189.

The spelling of 220300989 in words is "two hundred twenty million, three hundred thousand, nine hundred eighty-nine".