43425229 has 4 divisors (see below), whose sum is σ = 44137180. Its totient is φ = 42713280.

The previous prime is 43425211. The next prime is 43425247. The reversal of 43425229 is 92252434.

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

It is an interprime number because it is at equal distance from previous prime (43425211) and next prime (43425247).

It can be written as a sum of positive squares in 2 ways, for example, as 522729 + 42902500 = 723^2 + 6550^2 .

It is a cyclic number.

It is not a de Polignac number, because 43425229 - 2¹¹ = 43423181 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 43425229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43425269) 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, 355884 + ... + 356005.

It is an arithmetic number, because the mean of its divisors is an integer number (11034295).

Almost surely, 2^43425229 is an apocalyptic number.

It is an amenable number.

43425229 is a deficient number, since it is larger than the sum of its proper divisors (711951).

43425229 is an equidigital number, since it uses as much as digits as its factorization.

43425229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711950.

The product of its digits is 17280, while the sum is 31.

The square root of 43425229 is about 6589.7821663542. The cubic root of 43425229 is about 351.4908622653.

It can be divided in two parts, 434252 and 29, that added together give a square (434281 = 659²).

The spelling of 43425229 in words is "forty-three million, four hundred twenty-five thousand, two hundred twenty-nine".