2113336644 has 24 divisors (see below), whose sum is σ = 4932947040. Its totient is φ = 704184384.

The previous prime is 2113336627. The next prime is 2113336649. The reversal of 2113336644 is 4466333112.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2113336649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2592 + ... + 65064.

It is an arithmetic number, because the mean of its divisors is an integer number (205539460).

Almost surely, 2^2113336644 is an apocalyptic number.

It is an amenable number.

2113336644 is an abundant number, since it is smaller than the sum of its proper divisors (2819610396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2113336644 is a wasteful number, since it uses less digits than its factorization.

2113336644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65299 (or 65297 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 2113336644 is about 45971.0413630146. The cubic root of 2113336644 is about 1283.2843397874.

Adding to 2113336644 its reverse (4466333112), we get a palindrome (6579669756).

The spelling of 2113336644 in words is "two billion, one hundred thirteen million, three hundred thirty-six thousand, six hundred forty-four".