113502440 has 32 divisors (see below), whose sum is σ = 257402880. Its totient is φ = 45041472.

The previous prime is 113502427. The next prime is 113502443. The reversal of 113502440 is 44205311.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (113502443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6092 + ... + 16251.

It is an arithmetic number, because the mean of its divisors is an integer number (8043840).

Almost surely, 2^113502440 is an apocalyptic number.

113502440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113502440 is an abundant number, since it is smaller than the sum of its proper divisors (143900440).

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

113502440 is a wasteful number, since it uses less digits than its factorization.

113502440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22481 (or 22477 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 113502440 is about 10653.7523905899. The cubic root of 113502440 is about 484.1742991750.

Adding to 113502440 its reverse (44205311), we get a palindrome (157707751).

The spelling of 113502440 in words is "one hundred thirteen million, five hundred two thousand, four hundred forty".