43424253 has 48 divisors (see below), whose sum is σ = 70412160. Its totient is φ = 25660800.

The previous prime is 43424237. The next prime is 43424261. The reversal of 43424253 is 35242434.

It is not a de Polignac number, because 43424253 - 2⁴ = 43424237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43424203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 239823 + ... + 240003.

It is an arithmetic number, because the mean of its divisors is an integer number (1466920).

Almost surely, 2^43424253 is an apocalyptic number.

It is an amenable number.

43424253 is a deficient number, since it is larger than the sum of its proper divisors (26987907).

43424253 is a wasteful number, since it uses less digits than its factorization.

43424253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 287 counting only the distinct ones).

The product of its digits is 11520, while the sum is 27.

The square root of 43424253 is about 6589.7081118969. The cubic root of 43424253 is about 351.4882289447.

Adding to 43424253 its reverse (35242434), we get a palindrome (78666687).

The spelling of 43424253 in words is "forty-three million, four hundred twenty-four thousand, two hundred fifty-three".