43240432 has 20 divisors (see below), whose sum is σ = 83883520. Its totient is φ = 21593088.

The previous prime is 43240429. The next prime is 43240433. The reversal of 43240432 is 23404234.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43240433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19408 + ... + 21520.

It is an arithmetic number, because the mean of its divisors is an integer number (4194176).

Almost surely, 2^43240432 is an apocalyptic number.

It is an amenable number.

43240432 is a deficient number, since it is larger than the sum of its proper divisors (40643088).

43240432 is a wasteful number, since it uses less digits than its factorization.

43240432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400 (or 3394 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 43240432 is about 6575.7457371769. The cubic root of 43240432 is about 350.9915610128.

Adding to 43240432 its reverse (23404234), we get a palindrome (66644666).

The spelling of 43240432 in words is "forty-three million, two hundred forty thousand, four hundred thirty-two".