13534245440 has 56 divisors (see below), whose sum is σ = 32246727480. Its totient is φ = 5410623488.

The previous prime is 13534245437. The next prime is 13534245449. The reversal of 13534245440 is 4454243531.

It can be written as a sum of positive squares in 4 ways, for example, as 1296576064 + 12237669376 = 36008^2 + 110624^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13534245440.

It is not an unprimeable number, because it can be changed into a prime (13534245449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601106 + ... + 623214.

Almost surely, 2^13534245440 is an apocalyptic number.

13534245440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13534245440 is an abundant number, since it is smaller than the sum of its proper divisors (18712482040).

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

13534245440 is a wasteful number, since it uses less digits than its factorization.

13534245440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24039 (or 24029 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 13534245440 its reverse (4454243531), we get a palindrome (17988488971).

The spelling of 13534245440 in words is "thirteen billion, five hundred thirty-four million, two hundred forty-five thousand, four hundred forty".