43423401 has 8 divisors (see below), whose sum is σ = 66169024. Its totient is φ = 24813360.

The previous prime is 43423361. The next prime is 43423409. The reversal of 43423401 is 10432434.

43423401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43423401 - 2⁶ = 43423337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 2067781 = 43423401 / (4 + 3 + 4 + 2 + 3 + 4 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43423409) 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, 1033870 + ... + 1033911.

It is an arithmetic number, because the mean of its divisors is an integer number (8271128).

Almost surely, 2^43423401 is an apocalyptic number.

It is an amenable number.

43423401 is a deficient number, since it is larger than the sum of its proper divisors (22745623).

43423401 is a wasteful number, since it uses less digits than its factorization.

43423401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067791.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 43423401 is about 6589.6434653174. The cubic root of 43423401 is about 351.4859301530.

Adding to 43423401 its reverse (10432434), we get a palindrome (53855835).

The spelling of 43423401 in words is "forty-three million, four hundred twenty-three thousand, four hundred one".