220104 has 32 divisors (see below), whose sum is σ = 612000. Its totient is φ = 73296.

The previous prime is 220063. The next prime is 220123. The reversal of 220104 is 401022.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

220104 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294 + ... + 725.

It is an arithmetic number, because the mean of its divisors is an integer number (19125).

2²²⁰¹⁰⁴ is an apocalyptic number.

220104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220104 is an abundant number, since it is smaller than the sum of its proper divisors (391896).

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

220104 is a wasteful number, since it uses less digits than its factorization.

220104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 220104 is about 469.1524272558. The cubic root of 220104 is about 60.3776184197.

Adding to 220104 its reverse (401022), we get a palindrome (621126).

It can be divided in two parts, 220 and 104, that added together give a square (324 = 18²).

The spelling of 220104 in words is "two hundred twenty thousand, one hundred four", and thus it is an iban number.