43424424 has 80 divisors (see below), whose sum is σ = 128066400. Its totient is φ = 13709088.

The previous prime is 43424417. The next prime is 43424441. The reversal of 43424424 is 42442434.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10549 + ... + 14075.

It is an arithmetic number, because the mean of its divisors is an integer number (1600830).

Almost surely, 2^43424424 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 43424424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64033200).

43424424 is an abundant number, since it is smaller than the sum of its proper divisors (84641976).

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

43424424 is a wasteful number, since it uses less digits than its factorization.

43424424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564 (or 3551 counting only the distinct ones).

The product of its digits is 12288, while the sum is 27.

The square root of 43424424 is about 6589.7210866622. The cubic root of 43424424 is about 351.4886903183.

Adding to 43424424 its reverse (42442434), we get a palindrome (85866858).

The spelling of 43424424 in words is "forty-three million, four hundred twenty-four thousand, four hundred twenty-four".