2164224343 has 4 divisors (see below), whose sum is σ = 2194706448. Its totient is φ = 2133742240.

The previous prime is 2164224331. The next prime is 2164224347. The reversal of 2164224343 is 3434224612.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2164224343 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164224347) 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, 15240946 + ... + 15241087.

It is an arithmetic number, because the mean of its divisors is an integer number (548676612).

Almost surely, 2^2164224343 is an apocalyptic number.

2164224343 is a deficient number, since it is larger than the sum of its proper divisors (30482105).

2164224343 is an equidigital number, since it uses as much as digits as its factorization.

2164224343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30482104.

The product of its digits is 27648, while the sum is 31.

The square root of 2164224343 is about 46521.2246506904. The cubic root of 2164224343 is about 1293.5029570291.

Adding to 2164224343 its reverse (3434224612), we get a palindrome (5598448955).

The spelling of 2164224343 in words is "two billion, one hundred sixty-four million, two hundred twenty-four thousand, three hundred forty-three".