13504402240 has 112 divisors (see below), whose sum is σ = 37032614784. Its totient is φ = 4594636800.

The previous prime is 13504402201. The next prime is 13504402277. The reversal of 13504402240 is 4220440531.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270430 + ... + 316450.

Almost surely, 2^13504402240 is an apocalyptic number.

13504402240 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 13504402240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18516307392).

13504402240 is an abundant number, since it is smaller than the sum of its proper divisors (23528212544).

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

13504402240 is a wasteful number, since it uses less digits than its factorization.

13504402240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46176 (or 46166 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 13504402240 its reverse (4220440531), we get a palindrome (17724842771).

The spelling of 13504402240 in words is "thirteen billion, five hundred four million, four hundred two thousand, two hundred forty".