4400430243 has 16 divisors (see below), whose sum is σ = 6421489536. Its totient is φ = 2658234240.

The previous prime is 4400430163. The next prime is 4400430257. The reversal of 4400430243 is 3420340044.

It is a happy number.

It is not a de Polignac number, because 4400430243 - 2²⁶ = 4333321379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4400430283) 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, 207046 + ... + 227307.

It is an arithmetic number, because the mean of its divisors is an integer number (401343096).

Almost surely, 2^4400430243 is an apocalyptic number.

4400430243 is a deficient number, since it is larger than the sum of its proper divisors (2021059293).

4400430243 is a wasteful number, since it uses less digits than its factorization.

4400430243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434674.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 4400430243 is about 66335.7388064684. The cubic root of 4400430243 is about 1638.6959496486.

Adding to 4400430243 its reverse (3420340044), we get a palindrome (7820770287).

It can be divided in two parts, 44004 and 30243, that added together give a palindrome (74247).

The spelling of 4400430243 in words is "four billion, four hundred million, four hundred thirty thousand, two hundred forty-three".