44228891 has 8 divisors (see below), whose sum is σ = 50700000. Its totient is φ = 37795968.

The previous prime is 44228881. The next prime is 44228923. The reversal of 44228891 is 19882244.

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

It is a de Polignac number, because none of the positive numbers 2^k-44228891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44228881) 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, 7016 + ... + 11733.

It is an arithmetic number, because the mean of its divisors is an integer number (6337500).

Almost surely, 2^44228891 is an apocalyptic number.

44228891 is a deficient number, since it is larger than the sum of its proper divisors (6471109).

44228891 is a wasteful number, since it uses less digits than its factorization.

44228891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19093.

The product of its digits is 36864, while the sum is 38.

The square root of 44228891 is about 6650.4805089557. The cubic root of 44228891 is about 353.6459454973.

The spelling of 44228891 in words is "forty-four million, two hundred twenty-eight thousand, eight hundred ninety-one".