11402052440 has 64 divisors (see below), whose sum is σ = 26399036160. Its totient is φ = 4429486080.

The previous prime is 11402052397. The next prime is 11402052451. The reversal of 11402052440 is 4425020411.

11402052440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350132 + ... + 381308.

It is an arithmetic number, because the mean of its divisors is an integer number (412484940).

Almost surely, 2^11402052440 is an apocalyptic number.

11402052440 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 11402052440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13199518080).

11402052440 is an abundant number, since it is smaller than the sum of its proper divisors (14996983720).

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

11402052440 is a wasteful number, since it uses less digits than its factorization.

11402052440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31452 (or 31448 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 11402052440 its reverse (4425020411), we get a palindrome (15827072851).

The spelling of 11402052440 in words is "eleven billion, four hundred two million, fifty-two thousand, four hundred forty".