220009044 has 12 divisors (see below), whose sum is σ = 513354464. Its totient is φ = 73336344.

The previous prime is 220009043. The next prime is 220009057. The reversal of 220009044 is 440900022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 220009044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220009043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9167032 + ... + 9167055.

Almost surely, 2^220009044 is an apocalyptic number.

It is an amenable number.

220009044 is an abundant number, since it is smaller than the sum of its proper divisors (293345420).

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

220009044 is a wasteful number, since it uses less digits than its factorization.

220009044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18334094 (or 18334092 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 220009044 is about 14832.7018442359. The cubic root of 220009044 is about 603.6893458265.

Adding to 220009044 its reverse (440900022), we get a palindrome (660909066).

The spelling of 220009044 in words is "two hundred twenty million, nine thousand, forty-four".