220475289 has 8 divisors (see below), whose sum is σ = 298786432. Its totient is φ = 144573840.

The previous prime is 220475279. The next prime is 220475303. The reversal of 220475289 is 982574022.

220475289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220475289 - 2⁴ = 220475273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220475219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602209 + ... + 602574.

It is an arithmetic number, because the mean of its divisors is an integer number (37348304).

Almost surely, 2^220475289 is an apocalyptic number.

It is an amenable number.

220475289 is a deficient number, since it is larger than the sum of its proper divisors (78311143).

220475289 is a wasteful number, since it uses less digits than its factorization.

220475289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204847.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 220475289 is about 14848.4103189533. The cubic root of 220475289 is about 604.1154927680.

The spelling of 220475289 in words is "two hundred twenty million, four hundred seventy-five thousand, two hundred eighty-nine".