43012423 has 4 divisors (see below), whose sum is σ = 44495640. Its totient is φ = 41529208.

The previous prime is 43012421. The next prime is 43012429. The reversal of 43012423 is 32421034.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43012423 - 2¹ = 43012421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43012423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43012421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741565 + ... + 741622.

It is an arithmetic number, because the mean of its divisors is an integer number (11123910).

Almost surely, 2^43012423 is an apocalyptic number.

43012423 is a deficient number, since it is larger than the sum of its proper divisors (1483217).

43012423 is a wasteful number, since it uses less digits than its factorization.

43012423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483216.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 43012423 is about 6558.3857007651. The cubic root of 43012423 is about 350.3735413282.

Adding to 43012423 its reverse (32421034), we get a palindrome (75433457).

It can be divided in two parts, 4301 and 2423, that added together give a square (6724 = 82²).

The spelling of 43012423 in words is "forty-three million, twelve thousand, four hundred twenty-three".