220321360 has 80 divisors (see below), whose sum is σ = 619888896. Its totient is φ = 71092224.

The previous prime is 220321357. The next prime is 220321363. The reversal of 220321360 is 63123022.

It is an interprime number because it is at equal distance from previous prime (220321357) and next prime (220321363).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220321363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2052 + ... + 21091.

Almost surely, 2^220321360 is an apocalyptic number.

220321360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220321360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309944448).

220321360 is an abundant number, since it is smaller than the sum of its proper divisors (399567536).

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

220321360 is a wasteful number, since it uses less digits than its factorization.

220321360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23180 (or 23174 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 220321360 is about 14843.2260644376. The cubic root of 220321360 is about 603.9748684776.

Adding to 220321360 its reverse (63123022), we get a palindrome (283444382).

The spelling of 220321360 in words is "two hundred twenty million, three hundred twenty-one thousand, three hundred sixty".