43642334 has 16 divisors (see below), whose sum is σ = 67174272. Its totient is φ = 21253848.

The previous prime is 43642331. The next prime is 43642369. The reversal of 43642334 is 43324634.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 43642297 and 43642306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43642331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58367 + ... + 59109.

It is an arithmetic number, because the mean of its divisors is an integer number (4198392).

Almost surely, 2^43642334 is an apocalyptic number.

43642334 is a deficient number, since it is larger than the sum of its proper divisors (23531938).

43642334 is a wasteful number, since it uses less digits than its factorization.

43642334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471.

The product of its digits is 20736, while the sum is 29.

The square root of 43642334 is about 6606.2344796412. The cubic root of 43642334 is about 352.0756498477.

Adding to 43642334 its reverse (43324634), we get a palindrome (86966968).

The spelling of 43642334 in words is "forty-three million, six hundred forty-two thousand, three hundred thirty-four".