44809686 has 48 divisors (see below), whose sum is σ = 101569104. Its totient is φ = 14805504.

The previous prime is 44809651. The next prime is 44809691. The reversal of 44809686 is 68690844.

It is a happy number.

44809686 is a `hidden beast` number, since 4 + 480 + 96 + 86 = 666.

It is a congruent number.

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, 66246 + ... + 66918.

It is an arithmetic number, because the mean of its divisors is an integer number (2116023).

Almost surely, 2^44809686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44809686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50784552).

44809686 is an abundant number, since it is smaller than the sum of its proper divisors (56759418).

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

44809686 is a wasteful number, since it uses less digits than its factorization.

44809686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 44809686 is about 6694.0037346867. The cubic root of 44809686 is about 355.1871947995.

The spelling of 44809686 in words is "forty-four million, eight hundred nine thousand, six hundred eighty-six".