113013440 has 56 divisors (see below), whose sum is σ = 270753840. Its totient is φ = 44930048.

The previous prime is 113013413. The next prime is 113013443. The reversal of 113013440 is 44310311.

It is not an unprimeable number, because it can be changed into a prime (113013443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56294 + ... + 58266.

It is an arithmetic number, because the mean of its divisors is an integer number (4834890).

Almost surely, 2^113013440 is an apocalyptic number.

113013440 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 113013440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135376920).

113013440 is an abundant number, since it is smaller than the sum of its proper divisors (157740400).

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

113013440 is a wasteful number, since it uses less digits than its factorization.

113013440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169 (or 2159 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 113013440 is about 10630.7779583622. Note that the first 3 decimals coincide. The cubic root of 113013440 is about 483.4779791680.

Adding to 113013440 its reverse (44310311), we get a palindrome (157323751).

It can be divided in two parts, 11301 and 3440, that added together give a palindrome (14741).

The spelling of 113013440 in words is "one hundred thirteen million, thirteen thousand, four hundred forty".