13445432 has 128 divisors (see below), whose sum is σ = 35804160. Its totient is φ = 4561920.

The previous prime is 13445429. The next prime is 13445459. The reversal of 13445432 is 23454431.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 184148 + ... + 184220.

It is an arithmetic number, because the mean of its divisors is an integer number (279720).

Almost surely, 2^13445432 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 13445432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17902080).

13445432 is an abundant number, since it is smaller than the sum of its proper divisors (22358728).

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

13445432 is a wasteful number, since it uses less digits than its factorization.

13445432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 129 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 13445432 is about 3666.8013308605. The cubic root of 13445432 is about 237.7889049312.

Adding to 13445432 its reverse (23454431), we get a palindrome (36899863).

It can be divided in two parts, 1344 and 5432, that added together give a palindrome (6776).

The spelling of 13445432 in words is "thirteen million, four hundred forty-five thousand, four hundred thirty-two".