11223642 has 16 divisors (see below), whose sum is σ = 23628960. Its totient is φ = 3544272.

The previous prime is 11223637. The next prime is 11223649. The reversal of 11223642 is 24632211.

It is not an unprimeable number, because it can be changed into a prime (11223649) 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 7 ways as a sum of consecutive naturals, for example, 49113 + ... + 49340.

It is an arithmetic number, because the mean of its divisors is an integer number (1476810).

Almost surely, 2^11223642 is an apocalyptic number.

11223642 is an abundant number, since it is smaller than the sum of its proper divisors (12405318).

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

11223642 is a wasteful number, since it uses less digits than its factorization.

11223642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98477.

The product of its digits is 576, while the sum is 21.

The square root of 11223642 is about 3350.1704434252. The cubic root of 11223642 is about 223.8951066073.

Adding to 11223642 its reverse (24632211), we get a palindrome (35855853).

The spelling of 11223642 in words is "eleven million, two hundred twenty-three thousand, six hundred forty-two".