11142444 has 24 divisors (see below), whose sum is σ = 26293680. Its totient is φ = 3672064.

The previous prime is 11142427. The next prime is 11142449. The reversal of 11142444 is 44424111.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11142444.

It is not an unprimeable number, because it can be changed into a prime (11142449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4149 + ... + 6284.

It is an arithmetic number, because the mean of its divisors is an integer number (1095570).

Almost surely, 2^11142444 is an apocalyptic number.

It is an amenable number.

11142444 is an abundant number, since it is smaller than the sum of its proper divisors (15151236).

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

11142444 is a wasteful number, since it uses less digits than its factorization.

11142444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10529 (or 10527 counting only the distinct ones).

The product of its digits is 512, while the sum is 21.

The square root of 11142444 is about 3338.0299579243. The cubic root of 11142444 is about 223.3538725201.

Adding to 11142444 its reverse (44424111), we get a palindrome (55566555).

The spelling of 11142444 in words is "eleven million, one hundred forty-two thousand, four hundred forty-four".