113644242 has 64 divisors (see below), whose sum is σ = 270754560. Its totient is φ = 35240832.

The previous prime is 113644229. The next prime is 113644247. The reversal of 113644242 is 242446311.

It is a happy number.

113644242 is a `hidden beast` number, since 1 + 13 + 644 + 2 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (113644247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44718 + ... + 47190.

It is an arithmetic number, because the mean of its divisors is an integer number (4230540).

Almost surely, 2^113644242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113644242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135377280).

113644242 is an abundant number, since it is smaller than the sum of its proper divisors (157110318).

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

113644242 is a wasteful number, since it uses less digits than its factorization.

113644242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544 (or 2538 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 113644242 is about 10660.4053393856. The cubic root of 113644242 is about 484.3758464196.

The spelling of 113644242 in words is "one hundred thirteen million, six hundred forty-four thousand, two hundred forty-two".