2144422431 has 20 divisors (see below), whose sum is σ = 3289979352. Its totient is φ = 1390974768.

The previous prime is 2144422391. The next prime is 2144422463. The reversal of 2144422431 is 1342244412.

2144422431 is a `hidden beast` number, since 214 + 442 + 2 + 4 + 3 + 1 = 666.

It is not a de Polignac number, because 2144422431 - 2⁶ = 2144422367 is a prime.

It is a super-2 number, since 2×2144422431² = 9197095125151899522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2144422395 and 2144422404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144422331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 354765 + ... + 360758.

Almost surely, 2^2144422431 is an apocalyptic number.

2144422431 is a deficient number, since it is larger than the sum of its proper divisors (1145556921).

2144422431 is an equidigital number, since it uses as much as digits as its factorization.

2144422431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715572 (or 715563 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 2144422431 is about 46307.9089465288. The cubic root of 2144422431 is about 1289.5458271372.

Adding to 2144422431 its reverse (1342244412), we get a palindrome (3486666843).

The spelling of 2144422431 in words is "two billion, one hundred forty-four million, four hundred twenty-two thousand, four hundred thirty-one".