1144111340 has 12 divisors (see below), whose sum is σ = 2402633856. Its totient is φ = 457644528.

The previous prime is 1144111301. The next prime is 1144111343. The reversal of 1144111340 is 431114411.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 57205567 = 1144111340 / (1 + 1 + 4 + 4 + 1 + 1 + 1 + 3 + 4 + 0).

It is not an unprimeable number, because it can be changed into a prime (1144111343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28602764 + ... + 28602803.

It is an arithmetic number, because the mean of its divisors is an integer number (200219488).

Almost surely, 2^1144111340 is an apocalyptic number.

1144111340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144111340 is an abundant number, since it is smaller than the sum of its proper divisors (1258522516).

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

1144111340 is a wasteful number, since it uses less digits than its factorization.

1144111340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57205576 (or 57205574 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1144111340 is about 33824.7149285844. The cubic root of 1144111340 is about 1045.8982348927.

Adding to 1144111340 its reverse (431114411), we get a palindrome (1575225751).

The spelling of 1144111340 in words is "one billion, one hundred forty-four million, one hundred eleven thousand, three hundred forty".