113206644 has 72 divisors (see below), whose sum is σ = 305061120. Its totient is φ = 35314752.

The previous prime is 113206609. The next prime is 113206649. The reversal of 113206644 is 446602311.

113206644 is a `hidden beast` number, since 1 + 13 + 2 + 0 + 6 + 644 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113206649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37462 + ... + 40370.

It is an arithmetic number, because the mean of its divisors is an integer number (4236960).

Almost surely, 2^113206644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113206644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152530560).

113206644 is an abundant number, since it is smaller than the sum of its proper divisors (191854476).

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

113206644 is a wasteful number, since it uses less digits than its factorization.

113206644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2989 (or 2984 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 113206644 is about 10639.8610893188. The cubic root of 113206644 is about 483.7533349128.

Adding to 113206644 its reverse (446602311), we get a palindrome (559808955).

The spelling of 113206644 in words is "one hundred thirteen million, two hundred six thousand, six hundred forty-four".