11440232140 has 24 divisors (see below), whose sum is σ = 24032619072. Its totient is φ = 4574544000.

The previous prime is 11440232137. The next prime is 11440232143. The reversal of 11440232140 is 4123204411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11440232137) and next prime (11440232143).

It is a super-2 number, since 2×11440232140² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11440232143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35284 + ... + 155323.

It is an arithmetic number, because the mean of its divisors is an integer number (1001359128).

Almost surely, 2^11440232140 is an apocalyptic number.

11440232140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11440232140 is an abundant number, since it is smaller than the sum of its proper divisors (12592386932).

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

11440232140 is a wasteful number, since it uses less digits than its factorization.

11440232140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193617 (or 193615 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 11440232140 its reverse (4123204411), we get a palindrome (15563436551).

The spelling of 11440232140 in words is "eleven billion, four hundred forty million, two hundred thirty-two thousand, one hundred forty".