220488289 has 24 divisors (see below), whose sum is σ = 262953600. Its totient is φ = 184786056.

The previous prime is 220488287. The next prime is 220488313. The reversal of 220488289 is 982884022.

It is a happy number.

It is not a de Polignac number, because 220488289 - 2¹ = 220488287 is a prime.

It is a super-2 number, since 2×220488289² = 97230171172295042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220488287) 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 in 23 ways as a sum of consecutive naturals, for example, 2140612 + ... + 2140714.

It is an arithmetic number, because the mean of its divisors is an integer number (10956400).

Almost surely, 2^220488289 is an apocalyptic number.

It is an amenable number.

220488289 is a deficient number, since it is larger than the sum of its proper divisors (42465311).

220488289 is an frugal number, since it uses more digits than its factorization.

220488289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 220488289 is about 14848.8480697999. The cubic root of 220488289 is about 604.1273661274.

The spelling of 220488289 in words is "two hundred twenty million, four hundred eighty-eight thousand, two hundred eighty-nine".