11442144040 has 32 divisors (see below), whose sum is σ = 25767729000. Its totient is φ = 4572785664.

The previous prime is 11442144011. The next prime is 11442144047. The reversal of 11442144040 is 4044124411.

It can be written as a sum of positive squares in 4 ways, for example, as 3504403204 + 7937740836 = 59198^2 + 89094^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11442143996 and 11442144014.

It is not an unprimeable number, because it can be changed into a prime (11442144047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81525 + ... + 171844.

Almost surely, 2^11442144040 is an apocalyptic number.

11442144040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11442144040 is an abundant number, since it is smaller than the sum of its proper divisors (14325584960).

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

11442144040 is a wasteful number, since it uses less digits than its factorization.

11442144040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254509 (or 254505 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 11442144040 its reverse (4044124411), we get a palindrome (15486268451).

The spelling of 11442144040 in words is "eleven billion, four hundred forty-two million, one hundred forty-four thousand, forty".