220244424 has 64 divisors (see below), whose sum is σ = 568814400. Its totient is φ = 71011584.

The previous prime is 220244393. The next prime is 220244441. The reversal of 220244424 is 424442022.

220244424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 220244394 and 220244403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174307 + ... + 175565.

It is an arithmetic number, because the mean of its divisors is an integer number (8887725).

Almost surely, 2^220244424 is an apocalyptic number.

220244424 is a gapful number since it is divisible by the number (24) 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 220244424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284407200).

220244424 is an abundant number, since it is smaller than the sum of its proper divisors (348569976).

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

220244424 is a wasteful number, since it uses less digits than its factorization.

220244424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502 (or 1498 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 220244424 is about 14840.6342182536. The cubic root of 220244424 is about 603.9045578182.

Adding to 220244424 its reverse (424442022), we get a palindrome (644686446).

The spelling of 220244424 in words is "two hundred twenty million, two hundred forty-four thousand, four hundred twenty-four".