43668378 has 48 divisors (see below), whose sum is σ = 103652640. Its totient is φ = 13204512.

The previous prime is 43668377. The next prime is 43668413. The reversal of 43668378 is 87386634.

43668378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (43668371) 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 23 ways as a sum of consecutive naturals, for example, 12225 + ... + 15387.

It is an arithmetic number, because the mean of its divisors is an integer number (2159430).

Almost surely, 2^43668378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43668378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51826320).

43668378 is an abundant number, since it is smaller than the sum of its proper divisors (59984262).

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

43668378 is a wasteful number, since it uses less digits than its factorization.

43668378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3243 (or 3240 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 43668378 is about 6608.2053539520. The cubic root of 43668378 is about 352.1456708113.

The spelling of 43668378 in words is "forty-three million, six hundred sixty-eight thousand, three hundred seventy-eight".