11040440040 has 96 divisors (see below), whose sum is σ = 41007358080. Its totient is φ = 2523528576.

The previous prime is 11040440039. The next prime is 11040440053. The reversal of 11040440040 is 4004404011.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11040439995 and 11040440022.

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, 2188044 + ... + 2193083.

It is an arithmetic number, because the mean of its divisors is an integer number (427159980).

Almost surely, 2^11040440040 is an apocalyptic number.

11040440040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11040440040 is an abundant number, since it is smaller than the sum of its proper divisors (29966918040).

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

11040440040 is a wasteful number, since it uses less digits than its factorization.

11040440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381151 (or 4381144 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 11040440040 its reverse (4004404011), we get a palindrome (15044844051).

The spelling of 11040440040 in words is "eleven billion, forty million, four hundred forty thousand, forty".