220133444 has 12 divisors (see below), whose sum is σ = 385369068. Its totient is φ = 110028000.

The previous prime is 220133413. The next prime is 220133447. The reversal of 220133444 is 444331022.

220133444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 151044100 + 69089344 = 12290^2 + 8312^2 .

It is a super-2 number, since 2×220133444² = 96917466334602272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220133447) 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, 5894 + ... + 21794.

It is an arithmetic number, because the mean of its divisors is an integer number (32114089).

Almost surely, 2^220133444 is an apocalyptic number.

It is an amenable number.

220133444 is a deficient number, since it is larger than the sum of its proper divisors (165235624).

220133444 is a wasteful number, since it uses less digits than its factorization.

220133444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19366 (or 19364 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 220133444 is about 14836.8946885795. The cubic root of 220133444 is about 603.8031060054.

Adding to 220133444 its reverse (444331022), we get a palindrome (664464466).

The spelling of 220133444 in words is "two hundred twenty million, one hundred thirty-three thousand, four hundred forty-four".