1144040 has 32 divisors (see below), whose sum is σ = 2647080. Its totient is φ = 444672.

The previous prime is 1144037. The next prime is 1144061. The reversal of 1144040 is 404411.

It can be written as a sum of positive squares in 4 ways, for example, as 879844 + 264196 = 938^2 + 514^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1094 + ... + 1866.

2^1144040 is an apocalyptic number.

1144040 is a gapful number since it is divisible by the number (10) 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 1144040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1323540).

1144040 is an abundant number, since it is smaller than the sum of its proper divisors (1503040).

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

1144040 is a wasteful number, since it uses less digits than its factorization.

1144040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 817 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1144040 is about 1069.5980553460. The cubic root of 1144040 is about 104.5876495770.

Adding to 1144040 its reverse (404411), we get a palindrome (1548451).

The spelling of 1144040 in words is "one million, one hundred forty-four thousand, forty".