13645436 has 24 divisors (see below), whose sum is σ = 27396096. Its totient is φ = 5825520.

The previous prime is 13645393. The next prime is 13645447. The reversal of 13645436 is 63454631.

13645436 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 7 ways as a sum of consecutive naturals, for example, 7925 + ... + 9491.

It is an arithmetic number, because the mean of its divisors is an integer number (1141504).

Almost surely, 2^13645436 is an apocalyptic number.

It is an amenable number.

13645436 is an abundant number, since it is smaller than the sum of its proper divisors (13750660).

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

13645436 is a wasteful number, since it uses less digits than its factorization.

13645436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889 (or 1887 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 13645436 is about 3693.9729289750. The cubic root of 13645436 is about 238.9621620392.

The spelling of 13645436 in words is "thirteen million, six hundred forty-five thousand, four hundred thirty-six".