13604032 has 56 divisors (see below), whose sum is σ = 29571696. Its totient is φ = 6171648.

The previous prime is 13604023. The next prime is 13604033. The reversal of 13604032 is 23040631.

It is not an unprimeable number, because it can be changed into a prime (13604033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68958 + ... + 69154.

It is an arithmetic number, because the mean of its divisors is an integer number (528066).

Almost surely, 2^13604032 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 13604032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14785848).

13604032 is an abundant number, since it is smaller than the sum of its proper divisors (15967664).

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

13604032 is a wasteful number, since it uses less digits than its factorization.

13604032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 13604032 is about 3688.3644071594. The cubic root of 13604032 is about 238.7202248990.

Adding to 13604032 its reverse (23040631), we get a palindrome (36644663).

The spelling of 13604032 in words is "thirteen million, six hundred four thousand, thirty-two".