43431252 has 24 divisors (see below), whose sum is σ = 101571456. Its totient is φ = 14443968.

The previous prime is 43431251. The next prime is 43431263. The reversal of 43431252 is 25213434.

43431252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43431251) by changing a digit.

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, 1648 + ... + 9464.

It is an arithmetic number, because the mean of its divisors is an integer number (4232144).

Almost surely, 2^43431252 is an apocalyptic number.

It is an amenable number.

43431252 is an abundant number, since it is smaller than the sum of its proper divisors (58140204).

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

43431252 is a wasteful number, since it uses less digits than its factorization.

43431252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8287 (or 8285 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 43431252 is about 6590.2391458884. The cubic root of 43431252 is about 351.5071118944.

Adding to 43431252 its reverse (25213434), we get a palindrome (68644686).

The spelling of 43431252 in words is "forty-three million, four hundred thirty-one thousand, two hundred fifty-two".