11420441040 has 80 divisors (see below), whose sum is σ = 35468497728. Its totient is φ = 3039848448.

The previous prime is 11420441027. The next prime is 11420441041. The reversal of 11420441040 is 4014402411.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 11420440998 and 11420441016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420441041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87784 + ... + 174776.

Almost surely, 2^11420441040 is an apocalyptic number.

11420441040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11420441040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17734248864).

11420441040 is an abundant number, since it is smaller than the sum of its proper divisors (24048056688).

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

11420441040 is a wasteful number, since it uses less digits than its factorization.

11420441040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87556 (or 87550 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 11420441040 its reverse (4014402411), we get a palindrome (15434843451).

The spelling of 11420441040 in words is "eleven billion, four hundred twenty million, four hundred forty-one thousand, forty".