44158818 has 64 divisors (see below), whose sum is σ = 100859904. Its totient is φ = 12768000.

The previous prime is 44158817. The next prime is 44158837. The reversal of 44158818 is 81885144.

44158818 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 (44158811) 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 31 ways as a sum of consecutive naturals, for example, 231103 + ... + 231293.

It is an arithmetic number, because the mean of its divisors is an integer number (1575936).

Almost surely, 2^44158818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44158818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50429952).

44158818 is an abundant number, since it is smaller than the sum of its proper divisors (56701086).

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

44158818 is a wasteful number, since it uses less digits than its factorization.

44158818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351.

The product of its digits is 40960, while the sum is 39.

The square root of 44158818 is about 6645.2101546904. The cubic root of 44158818 is about 353.4590832421.

The spelling of 44158818 in words is "forty-four million, one hundred fifty-eight thousand, eight hundred eighteen".