113224640 has 56 divisors (see below), whose sum is σ = 273692112. Its totient is φ = 44605440.

The previous prime is 113224637. The next prime is 113224681. The reversal of 113224640 is 46422311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18800 + ... + 24080.

Almost surely, 2^113224640 is an apocalyptic number.

113224640 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 113224640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136846056).

113224640 is an abundant number, since it is smaller than the sum of its proper divisors (160467472).

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

113224640 is an equidigital number, since it uses as much as digits as its factorization.

113224640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5365 (or 5355 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 113224640 is about 10640.7067434452. The cubic root of 113224640 is about 483.7789669884.

Adding to 113224640 its reverse (46422311), we get a palindrome (159646951).

The spelling of 113224640 in words is "one hundred thirteen million, two hundred twenty-four thousand, six hundred forty".