13536440 has 16 divisors (see below), whose sum is σ = 30457080. Its totient is φ = 5414560.

The previous prime is 13536433. The next prime is 13536469. The reversal of 13536440 is 4463531.

13536440 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169166 + ... + 169245.

Almost surely, 2^13536440 is an apocalyptic number.

13536440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13536440 is an abundant number, since it is smaller than the sum of its proper divisors (16920640).

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

13536440 is a wasteful number, since it uses less digits than its factorization.

13536440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338422 (or 338418 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 13536440 is about 3679.1901282755. The cubic root of 13536440 is about 238.3242056697.

Adding to 13536440 its reverse (4463531), we get a palindrome (17999971).

The spelling of 13536440 in words is "thirteen million, five hundred thirty-six thousand, four hundred forty".