44221855 has 4 divisors (see below), whose sum is σ = 53066232. Its totient is φ = 35377480.

The previous prime is 44221843. The next prime is 44221907. The reversal of 44221855 is 55812244.

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

It is not a de Polignac number, because 44221855 - 2⁵ = 44221823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4422181 + ... + 4422190.

It is an arithmetic number, because the mean of its divisors is an integer number (13266558).

Almost surely, 2^44221855 is an apocalyptic number.

44221855 is a deficient number, since it is larger than the sum of its proper divisors (8844377).

44221855 is an equidigital number, since it uses as much as digits as its factorization.

44221855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8844376.

The product of its digits is 12800, while the sum is 31.

The square root of 44221855 is about 6649.9515035826. The cubic root of 44221855 is about 353.6271916558.

The spelling of 44221855 in words is "forty-four million, two hundred twenty-one thousand, eight hundred fifty-five".