115447424 has 32 divisors (see below), whose sum is σ = 233906400. Its totient is φ = 56741632.

The previous prime is 115447421. The next prime is 115447427. The reversal of 115447424 is 424744511.

It is an interprime number because it is at equal distance from previous prime (115447421) and next prime (115447427).

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

Together with 118458976 it forms an amicable pair .

It is not an unprimeable number, because it can be changed into a prime (115447421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92 + ... + 15195.

It is an arithmetic number, because the mean of its divisors is an integer number (7309575).

Almost surely, 2^115447424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115447424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116953200).

115447424 is an abundant number, since it is smaller than the sum of its proper divisors (118458976).

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

115447424 is an equidigital number, since it uses as much as digits as its factorization.

115447424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15360 (or 15348 counting only the distinct ones).

The product of its digits is 17920, while the sum is 32.

The square root of 115447424 is about 10744.6462947833. The cubic root of 115447424 is about 486.9242630361.

The spelling of 115447424 in words is "one hundred fifteen million, four hundred forty-seven thousand, four hundred twenty-four".