43420334 has 16 divisors (see below), whose sum is σ = 66479616. Its totient is φ = 21264600.

The previous prime is 43420331. The next prime is 43420379. The reversal of 43420334 is 43302434.

It is a happy number.

43420334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43420331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22799 + ... + 24629.

It is an arithmetic number, because the mean of its divisors is an integer number (4154976).

Almost surely, 2^43420334 is an apocalyptic number.

43420334 is a deficient number, since it is larger than the sum of its proper divisors (23059282).

43420334 is a wasteful number, since it uses less digits than its factorization.

43420334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 43420334 is about 6589.4107475555. The cubic root of 43420334 is about 351.4776547938.

Adding to 43420334 its reverse (43302434), we get a palindrome (86722768).

The spelling of 43420334 in words is "forty-three million, four hundred twenty thousand, three hundred thirty-four".