220024144 has 10 divisors (see below), whose sum is σ = 426296810. Its totient is φ = 110012064.

The previous prime is 220024139. The next prime is 220024229. The reversal of 220024144 is 441420022.

It can be written as a sum of positive squares in only one way, i.e., 139240000 + 80784144 = 11800^2 + 8988^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6875739 + ... + 6875770.

It is an arithmetic number, because the mean of its divisors is an integer number (42629681).

Almost surely, 2^220024144 is an apocalyptic number.

It is an amenable number.

220024144 is a deficient number, since it is larger than the sum of its proper divisors (206272666).

220024144 is a wasteful number, since it uses less digits than its factorization.

220024144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13751517 (or 13751511 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 220024144 is about 14833.2108459362. The cubic root of 220024144 is about 603.7031566232.

Adding to 220024144 its reverse (441420022), we get a palindrome (661444166).

The spelling of 220024144 in words is "two hundred twenty million, twenty-four thousand, one hundred forty-four".