2196838538 has 16 divisors (see below), whose sum is σ = 3328512000. Its totient is φ = 1087353072.

The previous prime is 2196838471. The next prime is 2196838541. The reversal of 2196838538 is 8358386912.

It is a self number, because there is not a number n which added to its sum of digits gives 2196838538.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274883 + ... + 282761.

It is an arithmetic number, because the mean of its divisors is an integer number (208032000).

Almost surely, 2^2196838538 is an apocalyptic number.

2196838538 is a deficient number, since it is larger than the sum of its proper divisors (1131673462).

2196838538 is a wasteful number, since it uses less digits than its factorization.

2196838538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9269.

The product of its digits is 2488320, while the sum is 53.

The square root of 2196838538 is about 46870.4441839418. Note that the first 3 decimals coincide. The cubic root of 2196838538 is about 1299.9681526715.

It can be divided in two parts, 21968 and 38538, that added together give a palindrome (60506).

The spelling of 2196838538 in words is "two billion, one hundred ninety-six million, eight hundred thirty-eight thousand, five hundred thirty-eight".