1226236 has 36 divisors (see below), whose sum is σ = 2502360. Its totient is φ = 520800.

The previous prime is 1226213. The next prime is 1226237. The reversal of 1226236 is 6326221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 2² + 2⁸ + 6² + 2²⁰ + 3¹¹ + 6³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39541 + ... + 39571.

It is an arithmetic number, because the mean of its divisors is an integer number (69510).

2^1226236 is an apocalyptic number.

It is an amenable number.

1226236 is an abundant number, since it is smaller than the sum of its proper divisors (1276124).

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

1226236 is a wasteful number, since it uses less digits than its factorization.

1226236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 73 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 1226236 is about 1107.3554081685. The cubic root of 1226236 is about 107.0347224778.

The spelling of 1226236 in words is "one million, two hundred twenty-six thousand, two hundred thirty-six".