220847488 has 64 divisors (see below), whose sum is σ = 470016000. Its totient is φ = 103057920.

The previous prime is 220847483. The next prime is 220847491. The reversal of 220847488 is 884748022.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×220847488² = 97547225911820288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220847483) 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 7 ways as a sum of consecutive naturals, for example, 172033 + ... + 173311.

It is an arithmetic number, because the mean of its divisors is an integer number (7344000).

Almost surely, 2^220847488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220847488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235008000).

220847488 is an abundant number, since it is smaller than the sum of its proper divisors (249168512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220847488 is a wasteful number, since it uses less digits than its factorization.

220847488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 43.

The square root of 220847488 is about 14860.9383283829. The cubic root of 220847488 is about 604.4552508320.

The spelling of 220847488 in words is "two hundred twenty million, eight hundred forty-seven thousand, four hundred eighty-eight".