43406423 has 8 divisors (see below), whose sum is σ = 46114992. Its totient is φ = 40715136.

The previous prime is 43406399. The next prime is 43406437. The reversal of 43406423 is 32460434.

43406423 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 43406423 - 2¹⁰ = 43405399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43406392 and 43406401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43406443) 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, 1061 + ... + 9377.

It is an arithmetic number, because the mean of its divisors is an integer number (5764374).

Almost surely, 2^43406423 is an apocalyptic number.

43406423 is a deficient number, since it is larger than the sum of its proper divisors (2708569).

43406423 is a wasteful number, since it uses less digits than its factorization.

43406423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8641.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 43406423 is about 6588.3551057908. The cubic root of 43406423 is about 351.4401153320.

Adding to 43406423 its reverse (32460434), we get a palindrome (75866857).

The spelling of 43406423 in words is "forty-three million, four hundred six thousand, four hundred twenty-three".