13601232 has 60 divisors (see below), whose sum is σ = 39389220. Its totient is φ = 4376064.

The previous prime is 13601227. The next prime is 13601239. The reversal of 13601232 is 23210631.

13601232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9585216 + 4016016 = 3096^2 + 2004^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13601239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2548 + ... + 5804.

It is an arithmetic number, because the mean of its divisors is an integer number (656487).

Almost surely, 2^13601232 is an apocalyptic number.

13601232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13601232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19694610).

13601232 is an abundant number, since it is smaller than the sum of its proper divisors (25787988).

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

13601232 is a wasteful number, since it uses less digits than its factorization.

13601232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300 (or 3291 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 13601232 is about 3687.9848155870. The cubic root of 13601232 is about 238.7038458702.

Adding to 13601232 its reverse (23210631), we get a palindrome (36811863).

The spelling of 13601232 in words is "thirteen million, six hundred one thousand, two hundred thirty-two".