11213244 has 36 divisors (see below), whose sum is σ = 32394544. Its totient is φ = 3203712.

The previous prime is 11213233. The next prime is 11213281. The reversal of 11213244 is 44231211.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a nude number because it is divisible by every one of its digits.

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 11 ways as a sum of consecutive naturals, for example, 21997 + ... + 22500.

Almost surely, 2^11213244 is an apocalyptic number.

11213244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11213244 is an abundant number, since it is smaller than the sum of its proper divisors (21181300).

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

11213244 is a wasteful number, since it uses less digits than its factorization.

11213244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44514 (or 44509 counting only the distinct ones).

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

The square root of 11213244 is about 3348.6182224912. The cubic root of 11213244 is about 223.8259436558.

Adding to 11213244 its reverse (44231211), we get a palindrome (55444455).

The spelling of 11213244 in words is "eleven million, two hundred thirteen thousand, two hundred forty-four".