220488871 has 4 divisors (see below), whose sum is σ = 220523472. Its totient is φ = 220454272.

The previous prime is 220488869. The next prime is 220488899. The reversal of 220488871 is 178884022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220488871 - 2¹ = 220488869 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220488371) 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 in 3 ways as a sum of consecutive naturals, for example, 4666 + ... + 21511.

It is an arithmetic number, because the mean of its divisors is an integer number (55130868).

Almost surely, 2^220488871 is an apocalyptic number.

220488871 is a deficient number, since it is larger than the sum of its proper divisors (34601).

220488871 is an equidigital number, since it uses as much as digits as its factorization.

220488871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34600.

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 220488871 is about 14848.8676672668. The cubic root of 220488871 is about 604.1278976777.

The spelling of 220488871 in words is "two hundred twenty million, four hundred eighty-eight thousand, eight hundred seventy-one".