44057891 has 2 divisors, whose sum is σ = 44057892. Its totient is φ = 44057890.

The previous prime is 44057813. The next prime is 44057899. The reversal of 44057891 is 19875044.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44057891 - 2¹⁸ = 43795747 is a prime.

It is not a weakly prime, because it can be changed into another prime (44057899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22028945 + 22028946.

It is an arithmetic number, because the mean of its divisors is an integer number (22028946).

Almost surely, 2^44057891 is an apocalyptic number.

44057891 is a deficient number, since it is larger than the sum of its proper divisors (1).

44057891 is an equidigital number, since it uses as much as digits as its factorization.

44057891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 44057891 is about 6637.6118446321. The cubic root of 44057891 is about 353.1895955238.

The spelling of 44057891 in words is "forty-four million, fifty-seven thousand, eight hundred ninety-one".