113220240 has 160 divisors (see below), whose sum is σ = 422353920. Its totient is φ = 24509952.

The previous prime is 113220223. The next prime is 113220241. The reversal of 113220240 is 42022311.

113220240 = T₃₃₅ + T₃₃₆ + ... + T₈₉₄.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (113220241) 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, 30147 + ... + 33693.

It is an arithmetic number, because the mean of its divisors is an integer number (2639712).

Almost surely, 2^113220240 is an apocalyptic number.

113220240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 10640×10641.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113220240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211176960).

113220240 is an abundant number, since it is smaller than the sum of its proper divisors (309133680).

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

113220240 is a wasteful number, since it uses less digits than its factorization.

113220240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589 (or 3583 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 113220240 is about 10640.4999882524. The cubic root of 113220240 is about 483.7727002281.

Adding to 113220240 its reverse (42022311), we get a palindrome (155242551).

The spelling of 113220240 in words is "one hundred thirteen million, two hundred twenty thousand, two hundred forty".