44539866 has 48 divisors (see below), whose sum is σ = 111067008. Its totient is φ = 12636000.

The previous prime is 44539849. The next prime is 44539871. The reversal of 44539866 is 66893544.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17856 + ... + 20196.

It is an arithmetic number, because the mean of its divisors is an integer number (2313896).

Almost surely, 2^44539866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44539866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55533504).

44539866 is an abundant number, since it is smaller than the sum of its proper divisors (66527142).

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

44539866 is a wasteful number, since it uses less digits than its factorization.

44539866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507 (or 2504 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 44539866 is about 6673.8194461642. The cubic root of 44539866 is about 354.4728431900.

The spelling of 44539866 in words is "forty-four million, five hundred thirty-nine thousand, eight hundred sixty-six".