43423455 has 16 divisors (see below), whose sum is σ = 73134720. Its totient is φ = 21940128.

The previous prime is 43423453. The next prime is 43423553. The reversal of 43423455 is 55432434.

It is not a de Polignac number, because 43423455 - 2¹ = 43423453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43423451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75897 + ... + 76466.

It is an arithmetic number, because the mean of its divisors is an integer number (4570920).

Almost surely, 2^43423455 is an apocalyptic number.

43423455 is a deficient number, since it is larger than the sum of its proper divisors (29711265).

43423455 is a wasteful number, since it uses less digits than its factorization.

43423455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152390.

The product of its digits is 28800, while the sum is 30.

The square root of 43423455 is about 6589.6475626546. The cubic root of 43423455 is about 351.4860758520.

Adding to 43423455 its reverse (55432434), we get a palindrome (98855889).

The spelling of 43423455 in words is "forty-three million, four hundred twenty-three thousand, four hundred fifty-five".