220044 has 24 divisors (see below), whose sum is σ = 560448.
Its totient is φ = 66640.
The previous prime is 220021. The next prime is 220057. The reversal of 220044 is 440022.
Adding to 220044 its reverse (440022), we get a palindrome (660066).
220044 = T22 + T23 + ... +
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a nialpdrome in base 12.
It is a zygodrome in base 10.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702 + ... + 965.
It is an arithmetic number, because the mean of its divisors is an integer number (23352).
2220044 is an apocalyptic number.
It is an amenable number.
220044 is an abundant number, since it is smaller than the sum of its proper divisors (340404).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
220044 is a wasteful number, since it uses less digits than its factorization.
220044 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1685 (or 1683 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 12.
The square root of 220044 is about 469.0884777950.
The cubic root of 220044 is about 60.3721316402.
The spelling of 220044 in words is "two hundred twenty thousand, forty-four", and thus it is an iban number.