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220244 = 2255061

220244 has 6 divisors (see below), whose sum is σ = 385434. Its totient is φ = 110120.

The previous prime is 220243. The next prime is 220279. The reversal of 220244 is 442022.

It is a happy number.

220244 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 only one way, i.e., 184900 + 35344 = 430^2 + 188^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 220244.

It is not an unprimeable number, because it can be changed into a prime (220243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27527 + ... + 27534.

It is an arithmetic number, because the mean of its divisors is an integer number (64239).

2220244 is an apocalyptic number.

It is an amenable number.

220244 is a deficient number, since it is larger than the sum of its proper divisors (165190).

220244 is a wasteful number, since it uses less digits than its factorization.

220244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55065 (or 55063 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 220244 is about 469.3016087763. The cubic root of 220244 is about 60.3904170286.

Subtracting from 220244 its product of nonzero digits (128), we obtain a triangular number (220116 = T663).

Adding to 220244 its reverse (442022), we get a palindrome (662266).

It can be divided in two parts, 220 and 244, that added together give a palindrome (464).

The spelling of 220244 in words is "two hundred twenty thousand, two hundred forty-four", and thus it is an iban number.

Divisors: 1 2 4 55061 110122 220244