43229423 has 4 divisors (see below), whose sum is σ = 43250760. Its totient is φ = 43208088.

The previous prime is 43229411. The next prime is 43229437. The reversal of 43229423 is 32492234.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32492234 = 2 ⋅16246117.

It is a cyclic number.

It is not a de Polignac number, because 43229423 - 2¹² = 43225327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43229023) 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, 7268 + ... + 11801.

It is an arithmetic number, because the mean of its divisors is an integer number (10812690).

Almost surely, 2^43229423 is an apocalyptic number.

43229423 is a deficient number, since it is larger than the sum of its proper divisors (21337).

43229423 is a wasteful number, since it uses less digits than its factorization.

43229423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21336.

The product of its digits is 10368, while the sum is 29.

The square root of 43229423 is about 6574.9085925205. The cubic root of 43229423 is about 350.9617710385.

The spelling of 43229423 in words is "forty-three million, two hundred twenty-nine thousand, four hundred twenty-three".