44440861 has 4 divisors (see below), whose sum is σ = 44537724. Its totient is φ = 44344000.

The previous prime is 44440849. The next prime is 44440883. The reversal of 44440861 is 16804444.

44440861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4435236 + 40005625 = 2106^2 + 6325^2 .

It is a cyclic number.

It is not a de Polignac number, because 44440861 - 2¹⁵ = 44408093 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44440831) 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 3 ways as a sum of consecutive naturals, for example, 47740 + ... + 48661.

It is an arithmetic number, because the mean of its divisors is an integer number (11134431).

Almost surely, 2^44440861 is an apocalyptic number.

It is an amenable number.

44440861 is a deficient number, since it is larger than the sum of its proper divisors (96863).

44440861 is an equidigital number, since it uses as much as digits as its factorization.

44440861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96862.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 44440861 is about 6666.3979029158. The cubic root of 44440861 is about 354.2100028601.

The spelling of 44440861 in words is "forty-four million, four hundred forty thousand, eight hundred sixty-one".