32144432 has 40 divisors (see below), whose sum is σ = 65647584. Its totient is φ = 15217664.

The previous prime is 32144419. The next prime is 32144443. The reversal of 32144432 is 23444123.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 32144398 and 32144407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41198 + ... + 41970.

Almost surely, 2^32144432 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 32144432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32823792).

32144432 is an abundant number, since it is smaller than the sum of its proper divisors (33503152).

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

32144432 is a wasteful number, since it uses less digits than its factorization.

32144432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 911 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 32144432 is about 5669.6059827822. The cubic root of 32144432 is about 317.9571425438.

Adding to 32144432 its reverse (23444123), we get a palindrome (55588555).

The spelling of 32144432 in words is "thirty-two million, one hundred forty-four thousand, four hundred thirty-two".