4243122 has 24 divisors (see below), whose sum is σ = 9901164. Its totient is φ = 1305504.

The previous prime is 4243121. The next prime is 4243139. The reversal of 4243122 is 2213424.

It can be written as a sum of positive squares in 2 ways, for example, as 4004001 + 239121 = 2001^2 + 489^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4243095 and 4243104.

It is not an unprimeable number, because it can be changed into a prime (4243121) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8833 + ... + 9300.

Almost surely, 2^4243122 is an apocalyptic number.

4243122 is an abundant number, since it is smaller than the sum of its proper divisors (5658042).

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

4243122 is a wasteful number, since it uses less digits than its factorization.

4243122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18154 (or 18151 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 4243122 is about 2059.8839773152. The cubic root of 4243122 is about 161.8931622958.

Adding to 4243122 its reverse (2213424), we get a palindrome (6456546).

The spelling of 4243122 in words is "four million, two hundred forty-three thousand, one hundred twenty-two".