43216634 has 16 divisors (see below), whose sum is σ = 67182720. Its totient is φ = 20835360.

The previous prime is 43216633. The next prime is 43216661. The reversal of 43216634 is 43661234.

It is a junction number, because it is equal to n+sod(n) for n = 43216597 and 43216606.

It is not an unprimeable number, because it can be changed into a prime (43216633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3614 + ... + 9974.

It is an arithmetic number, because the mean of its divisors is an integer number (4198920).

Almost surely, 2^43216634 is an apocalyptic number.

43216634 is a deficient number, since it is larger than the sum of its proper divisors (23966086).

43216634 is a wasteful number, since it uses less digits than its factorization.

43216634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6485.

The product of its digits is 10368, while the sum is 29.

The square root of 43216634 is about 6573.9359595299. The cubic root of 43216634 is about 350.9271580946.

Adding to 43216634 its reverse (43661234), we get a palindrome (86877868).

The spelling of 43216634 in words is "forty-three million, two hundred sixteen thousand, six hundred thirty-four".