113442220 has 12 divisors (see below), whose sum is σ = 238228704. Its totient is φ = 45376880.

The previous prime is 113442181. The next prime is 113442221. The reversal of 113442220 is 22244311.

It is not an unprimeable number, because it can be changed into a prime (113442221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2836036 + ... + 2836075.

It is an arithmetic number, because the mean of its divisors is an integer number (19852392).

Almost surely, 2^113442220 is an apocalyptic number.

113442220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113442220 is an abundant number, since it is smaller than the sum of its proper divisors (124786484).

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

113442220 is a wasteful number, since it uses less digits than its factorization.

113442220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5672120 (or 5672118 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 113442220 is about 10650.9257813582. The cubic root of 113442220 is about 484.0886559814.

Adding to 113442220 its reverse (22244311), we get a palindrome (135686531).

The spelling of 113442220 in words is "one hundred thirteen million, four hundred forty-two thousand, two hundred twenty".