219220 has 24 divisors (see below), whose sum is σ = 469224. Its totient is φ = 86016.

The previous prime is 219217. The next prime is 219223. The reversal of 219220 is 22912.

It is a happy number.

219220 is nontrivially palindromic in base 7.

It is an interprime number because it is at equal distance from previous prime (219217) and next prime (219223).

It can be written as a sum of positive squares in 4 ways, for example, as 196 + 219024 = 14^2 + 468^2 .

It is a junction number, because it is equal to n+sod(n) for n = 219194 and 219203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219223) 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, 1884 + ... + 1996.

It is an arithmetic number, because the mean of its divisors is an integer number (19551).

2²¹⁹²²⁰ is an apocalyptic number.

219220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

219220 is an abundant number, since it is smaller than the sum of its proper divisors (250004).

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

219220 is a wasteful number, since it uses less digits than its factorization.

219220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 219220 is about 468.2093548830. The cubic root of 219220 is about 60.2966787588.

The spelling of 219220 in words is "two hundred nineteen thousand, two hundred twenty".