1144724 has 12 divisors (see below), whose sum is σ = 2289504. Its totient is φ = 490584.

The previous prime is 1144723. The next prime is 1144727. The reversal of 1144724 is 4274411.

It is a happy number.

1144724 is an admirable number.

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 1144724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144721) 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 3 ways as a sum of consecutive naturals, for example, 20414 + ... + 20469.

It is an arithmetic number, because the mean of its divisors is an integer number (190792).

2^1144724 is an apocalyptic number.

1144724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1144724 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1144724 is a wasteful number, since it uses less digits than its factorization.

1144724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40894 (or 40892 counting only the distinct ones).

The product of its digits is 896, while the sum is 23.

The square root of 1144724 is about 1069.9177538484. The cubic root of 1144724 is about 104.6084890872.

Subtracting from 1144724 its product of digits (896), we obtain a triangular number (1143828 = T₁₅₁₂).

The spelling of 1144724 in words is "one million, one hundred forty-four thousand, seven hundred twenty-four".