13604536 has 32 divisors (see below), whose sum is σ = 28730880. Its totient is φ = 5983200.

The previous prime is 13604533. The next prime is 13604587. The reversal of 13604536 is 63540631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13604531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235 + ... + 5221.

It is an arithmetic number, because the mean of its divisors is an integer number (897840).

Almost surely, 2^13604536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13604536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14365440).

13604536 is an abundant number, since it is smaller than the sum of its proper divisors (15126344).

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

13604536 is a wasteful number, since it uses less digits than its factorization.

13604536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035 (or 5031 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 13604536 is about 3688.4327294937. The cubic root of 13604536 is about 238.7231728855.

The spelling of 13604536 in words is "thirteen million, six hundred four thousand, five hundred thirty-six".