44285581 has 8 divisors (see below), whose sum is σ = 46678680. Its totient is φ = 41950272.

The previous prime is 44285569. The next prime is 44285597. The reversal of 44285581 is 18558244.

It can be written as a sum of positive squares in 4 ways, for example, as 4708900 + 39576681 = 2170^2 + 6291^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44285581 - 2¹⁹ = 43761293 is a prime.

It is a super-3 number, since 3×44285581³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44285581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44285551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12870 + ... + 15943.

It is an arithmetic number, because the mean of its divisors is an integer number (5834835).

Almost surely, 2^44285581 is an apocalyptic number.

It is an amenable number.

44285581 is a deficient number, since it is larger than the sum of its proper divisors (2393099).

44285581 is a wasteful number, since it uses less digits than its factorization.

44285581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28895.

The product of its digits is 51200, while the sum is 37.

The square root of 44285581 is about 6654.7412421521. The cubic root of 44285581 is about 353.7969752033.

The spelling of 44285581 in words is "forty-four million, two hundred eighty-five thousand, five hundred eighty-one".