113224440 has 128 divisors (see below), whose sum is σ = 398799360. Its totient is φ = 25173504.

The previous prime is 113224429. The next prime is 113224487. The reversal of 113224440 is 44422311.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29259 + ... + 32901.

It is an arithmetic number, because the mean of its divisors is an integer number (3115620).

Almost surely, 2^113224440 is an apocalyptic number.

113224440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113224440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199399680).

113224440 is an abundant number, since it is smaller than the sum of its proper divisors (285574920).

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

113224440 is a wasteful number, since it uses less digits than its factorization.

113224440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701 (or 3697 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 113224440 is about 10640.6973455690. The cubic root of 113224440 is about 483.7786821391.

Adding to 113224440 its reverse (44422311), we get a palindrome (157646751).

The spelling of 113224440 in words is "one hundred thirteen million, two hundred twenty-four thousand, four hundred forty".