44866821 has 8 divisors (see below), whose sum is σ = 59913504. Its totient is φ = 29865680.

The previous prime is 44866819. The next prime is 44866831. The reversal of 44866821 is 12866844.

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 44866821 - 2¹ = 44866819 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 44866821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44866831) 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, 9015 + ... + 13076.

It is an arithmetic number, because the mean of its divisors is an integer number (7489188).

Almost surely, 2^44866821 is an apocalyptic number.

It is an amenable number.

44866821 is a deficient number, since it is larger than the sum of its proper divisors (15046683).

44866821 is a wasteful number, since it uses less digits than its factorization.

44866821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22771.

The product of its digits is 73728, while the sum is 39.

The square root of 44866821 is about 6698.2700005300. The cubic root of 44866821 is about 355.3380922438.

The spelling of 44866821 in words is "forty-four million, eight hundred sixty-six thousand, eight hundred twenty-one".