13506388 has 12 divisors (see below), whose sum is σ = 27012832. Its totient is φ = 5788440.

The previous prime is 13506379. The next prime is 13506391. The reversal of 13506388 is 88360531.

It is a happy number.

13506388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

13506388 is an admirable number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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, 241158 + ... + 241213.

Almost surely, 2^13506388 is an apocalyptic number.

It is an amenable number.

13506388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13506388 is a wasteful number, since it uses less digits than its factorization.

13506388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482382 (or 482380 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 13506388 is about 3675.1038080577. The cubic root of 13506388 is about 238.1477086061.

The spelling of 13506388 in words is "thirteen million, five hundred six thousand, three hundred eighty-eight".