1144334240 has 144 divisors (see below), whose sum is σ = 3163642272. Its totient is φ = 390007296.

The previous prime is 1144334237. The next prime is 1144334251. The reversal of 1144334240 is 424334411.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1779359 + ... + 1780001.

It is an arithmetic number, because the mean of its divisors is an integer number (21969738).

Almost surely, 2^1144334240 is an apocalyptic number.

1144334240 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 1144334240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1581821136).

1144334240 is an abundant number, since it is smaller than the sum of its proper divisors (2019308032).

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

1144334240 is a wasteful number, since it uses less digits than its factorization.

1144334240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1144334240 is about 33828.0096961083. The cubic root of 1144334240 is about 1045.9661524022.

Adding to 1144334240 its reverse (424334411), we get a palindrome (1568668651).

The spelling of 1144334240 in words is "one billion, one hundred forty-four million, three hundred thirty-four thousand, two hundred forty".