11222406 has 48 divisors (see below), whose sum is σ = 26426400. Its totient is φ = 3421440.

The previous prime is 11222357. The next prime is 11222417. The reversal of 11222406 is 60422211.

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

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 46446 + ... + 46686.

It is an arithmetic number, because the mean of its divisors is an integer number (550550).

Almost surely, 2^11222406 is an apocalyptic number.

11222406 is the 1791-st nonagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11222406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13213200).

11222406 is an abundant number, since it is smaller than the sum of its proper divisors (15203994).

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

11222406 is a wasteful number, since it uses less digits than its factorization.

11222406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 11222406 is about 3349.9859701199. The cubic root of 11222406 is about 223.8868875132.

Adding to 11222406 its reverse (60422211), we get a palindrome (71644617).

It can be divided in two parts, 11222 and 406, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 11222406 in words is "eleven million, two hundred twenty-two thousand, four hundred six".