13443232 has 48 divisors (see below), whose sum is σ = 29169504. Its totient is φ = 6048000.

The previous prime is 13443217. The next prime is 13443239. The reversal of 13443232 is 23234431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

13443232 is a modest number, since divided by 3232 gives 1344 as remainder.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (13443239) 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, 63607 + ... + 63817.

It is an arithmetic number, because the mean of its divisors is an integer number (607698).

Almost surely, 2^13443232 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 13443232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14584752).

13443232 is an abundant number, since it is smaller than the sum of its proper divisors (15726272).

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

13443232 is a wasteful number, since it uses less digits than its factorization.

13443232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 405 counting only the distinct ones).

The product of its digits is 1728, while the sum is 22.

The square root of 13443232 is about 3666.5013296057. The cubic root of 13443232 is about 237.7759348725.

Adding to 13443232 its reverse (23234431), we get a palindrome (36677663).

The spelling of 13443232 in words is "thirteen million, four hundred forty-three thousand, two hundred thirty-two".