2198636 has 24 divisors (see below), whose sum is σ = 4245696. Its totient is φ = 987920.

The previous prime is 2198617. The next prime is 2198653. The reversal of 2198636 is 6368912.

It is a junction number, because it is equal to n+sod(n) for n = 2198596 and 2198605.

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, 4475 + ... + 4941.

It is an arithmetic number, because the mean of its divisors is an integer number (176904).

2^2198636 is an apocalyptic number.

It is an amenable number.

2198636 is a deficient number, since it is larger than the sum of its proper divisors (2047060).

2198636 is a wasteful number, since it uses less digits than its factorization.

2198636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 587 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 2198636 is about 1482.7798218212. The cubic root of 2198636 is about 130.0322602384.

It can be divided in two parts, 21986 and 36, that added together give a palindrome (22022).

The spelling of 2198636 in words is "two million, one hundred ninety-eight thousand, six hundred thirty-six".