2164522342 has 4 divisors (see below), whose sum is σ = 3246783516. Its totient is φ = 1082261170.

The previous prime is 2164522337. The next prime is 2164522363. The reversal of 2164522342 is 2432254612.

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

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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541130584 + ... + 541130587.

It is an arithmetic number, because the mean of its divisors is an integer number (811695879).

Almost surely, 2^2164522342 is an apocalyptic number.

2164522342 is a deficient number, since it is larger than the sum of its proper divisors (1082261174).

2164522342 is a wasteful number, since it uses less digits than its factorization.

2164522342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082261173.

The product of its digits is 23040, while the sum is 31.

The square root of 2164522342 is about 46524.4273688565. The cubic root of 2164522342 is about 1293.5623231631.

Adding to 2164522342 its reverse (2432254612), we get a palindrome (4596776954).

The spelling of 2164522342 in words is "two billion, one hundred sixty-four million, five hundred twenty-two thousand, three hundred forty-two".