43161232 has 40 divisors (see below), whose sum is σ = 89431776. Its totient is φ = 20107776.

The previous prime is 43161229. The next prime is 43161241. The reversal of 43161232 is 23216134.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28363 + ... + 29845.

Almost surely, 2^43161232 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 43161232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44715888).

43161232 is an abundant number, since it is smaller than the sum of its proper divisors (46270544).

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

43161232 is a wasteful number, since it uses less digits than its factorization.

43161232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615 (or 1609 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 43161232 is about 6569.7208464287. The cubic root of 43161232 is about 350.7771357651. Note that the first 3 decimals are identical.

Adding to 43161232 its reverse (23216134), we get a palindrome (66377366).

The spelling of 43161232 in words is "forty-three million, one hundred sixty-one thousand, two hundred thirty-two".