11143944 has 48 divisors (see below), whose sum is σ = 34494720. Its totient is φ = 3183840.

The previous prime is 11143933. The next prime is 11143949. The reversal of 11143944 is 44934111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10552 + ... + 11559.

It is an arithmetic number, because the mean of its divisors is an integer number (718640).

Almost surely, 2^11143944 is an apocalyptic number.

11143944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11143944 is an abundant number, since it is smaller than the sum of its proper divisors (23350776).

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

11143944 is a wasteful number, since it uses less digits than its factorization.

11143944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22130 (or 22123 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 11143944 is about 3338.2546337869. The cubic root of 11143944 is about 223.3638947311.

It can be divided in two parts, 111 and 43944, that multiplied together give a palindrome (4877784).

The spelling of 11143944 in words is "eleven million, one hundred forty-three thousand, nine hundred forty-four".