1143744 has 112 divisors (see below), whose sum is σ = 3706368. Its totient is φ = 304128.

The previous prime is 1143719. The next prime is 1143749. The reversal of 1143744 is 4473411.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30894 + ... + 30930.

2^1143744 is an apocalyptic number.

1143744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1853184).

1143744 is an abundant number, since it is smaller than the sum of its proper divisors (2562624).

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

1143744 is a wasteful number, since it uses less digits than its factorization.

1143744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 72 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 1143744 is about 1069.4596766592. The cubic root of 1143744 is about 104.5786287343.

It can be divided in two parts, 11 and 43744, that multiplied together give a palindrome (481184).

The spelling of 1143744 in words is "one million, one hundred forty-three thousand, seven hundred forty-four".