43216413 has 4 divisors (see below), whose sum is σ = 57621888. Its totient is φ = 28810940.

The previous prime is 43216403. The next prime is 43216441. The reversal of 43216413 is 31461234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43216413 - 2⁹ = 43215901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43216403) 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, 7202733 + ... + 7202738.

It is an arithmetic number, because the mean of its divisors is an integer number (14405472).

Almost surely, 2^43216413 is an apocalyptic number.

It is an amenable number.

43216413 is a deficient number, since it is larger than the sum of its proper divisors (14405475).

43216413 is a wasteful number, since it uses less digits than its factorization.

43216413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14405474.

The product of its digits is 1728, while the sum is 24.

The square root of 43216413 is about 6573.9191507045. The cubic root of 43216413 is about 350.9265599064.

Adding to 43216413 its reverse (31461234), we get a palindrome (74677647).

The spelling of 43216413 in words is "forty-three million, two hundred sixteen thousand, four hundred thirteen".