2144430431 has 16 divisors (see below), whose sum is σ = 2551234560. Its totient is φ = 1776733920.

The previous prime is 2144430401. The next prime is 2144430437. The reversal of 2144430431 is 1340344412.

It is not a de Polignac number, because 2144430431 - 2¹⁰ = 2144429407 is a prime.

It is a super-2 number, since 2×2144430431² = 9197163746797691522, which contains 22 as substring.

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 2144430431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144430437) 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, 83615 + ... + 106208.

It is an arithmetic number, because the mean of its divisors is an integer number (159452160).

Almost surely, 2^2144430431 is an apocalyptic number.

2144430431 is a deficient number, since it is larger than the sum of its proper divisors (406804129).

2144430431 is a wasteful number, since it uses less digits than its factorization.

2144430431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189926.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 2144430431 is about 46307.9953247817. The cubic root of 2144430431 is about 1289.5474307320.

Adding to 2144430431 its reverse (1340344412), we get a palindrome (3484774843).

The spelling of 2144430431 in words is "two billion, one hundred forty-four million, four hundred thirty thousand, four hundred thirty-one".