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220422 = 23172161
BaseRepresentation
bin110101110100000110
3102012100210
4311310012
524023142
64420250
71605426
oct656406
9365323
10220422
11140674
12a7686
1379437
145a486
154549c
hex35d06

220422 has 16 divisors (see below), whose sum is σ = 466992. Its totient is φ = 69120.

The previous prime is 220421. The next prime is 220447. The reversal of 220422 is 224022.

It is a happy number.

220422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 220398 and 220407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 979 + ... + 1182.

It is an arithmetic number, because the mean of its divisors is an integer number (29187).

2220422 is an apocalyptic number.

220422 is an abundant number, since it is smaller than the sum of its proper divisors (246570).

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

220422 is a wasteful number, since it uses less digits than its factorization.

220422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 220422 is about 469.4912139753. The cubic root of 220422 is about 60.4066817163.

Adding to 220422 its reverse (224022), we get a palindrome (444444).

Subtracting 220422 from its reverse (224022), we obtain a square (3600 = 602).

The spelling of 220422 in words is "two hundred twenty thousand, four hundred twenty-two", and thus it is an iban number.