2164263238 has 8 divisors (see below), whose sum is σ = 3315467232. Its totient is φ = 1059107496.

The previous prime is 2164263209. The next prime is 2164263239. The reversal of 2164263238 is 8323624612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2164263197 and 2164263206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164263239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11511945 + ... + 11512132.

It is an arithmetic number, because the mean of its divisors is an integer number (414433404).

Almost surely, 2^2164263238 is an apocalyptic number.

2164263238 is a deficient number, since it is larger than the sum of its proper divisors (1151203994).

2164263238 is a wasteful number, since it uses less digits than its factorization.

2164263238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23024126.

The product of its digits is 82944, while the sum is 37.

The square root of 2164263238 is about 46521.6426838090. The cubic root of 2164263238 is about 1293.5107058401.

The spelling of 2164263238 in words is "two billion, one hundred sixty-four million, two hundred sixty-three thousand, two hundred thirty-eight".