1140344312 has 16 divisors (see below), whose sum is σ = 2158905840. Its totient is φ = 564636096.

The previous prime is 1140344311. The next prime is 1140344323. The reversal of 1140344312 is 2134430411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140344311) 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, 691133 + ... + 692780.

It is an arithmetic number, because the mean of its divisors is an integer number (134931615).

Almost surely, 2^1140344312 is an apocalyptic number.

It is an amenable number.

1140344312 is a deficient number, since it is larger than the sum of its proper divisors (1018561528).

1140344312 is a wasteful number, since it uses less digits than its factorization.

1140344312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384022 (or 1384018 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1140344312 is about 33768.9844679996. The cubic root of 1140344312 is about 1044.7490868324.

Adding to 1140344312 its reverse (2134430411), we get a palindrome (3274774723).

The spelling of 1140344312 in words is "one billion, one hundred forty million, three hundred forty-four thousand, three hundred twelve".