1222436 has 12 divisors (see below), whose sum is σ = 2265228. Its totient is φ = 575232.

The previous prime is 1222433. The next prime is 1222471. The reversal of 1222436 is 6342221.

It can be written as a sum of positive squares in 2 ways, for example, as 792100 + 430336 = 890^2 + 656^2 .

It is not an unprimeable number, because it can be changed into a prime (1222433) 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, 8921 + ... + 9056.

It is an arithmetic number, because the mean of its divisors is an integer number (188769).

2^1222436 is an apocalyptic number.

It is an amenable number.

1222436 is a deficient number, since it is larger than the sum of its proper divisors (1042792).

1222436 is a wasteful number, since it uses less digits than its factorization.

1222436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17998 (or 17996 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 1222436 is about 1105.6382771956. The cubic root of 1222436 is about 106.9240442688.

Adding to 1222436 its reverse (6342221), we get a palindrome (7564657).

The spelling of 1222436 in words is "one million, two hundred twenty-two thousand, four hundred thirty-six".