44449021 has 2 divisors, whose sum is σ = 44449022. Its totient is φ = 44449020.

The previous prime is 44448983. The next prime is 44449039. The reversal of 44449021 is 12094444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32649796 + 11799225 = 5714^2 + 3435^2 .

It is a cyclic number.

It is not a de Polignac number, because 44449021 - 2²³ = 36060413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44449051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22224510 + 22224511.

It is an arithmetic number, because the mean of its divisors is an integer number (22224511).

Almost surely, 2^44449021 is an apocalyptic number.

It is an amenable number.

44449021 is a deficient number, since it is larger than the sum of its proper divisors (1).

44449021 is an equidigital number, since it uses as much as digits as its factorization.

44449021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 44449021 is about 6667.0098994977. The cubic root of 44449021 is about 354.2316809335.

The spelling of 44449021 in words is "forty-four million, four hundred forty-nine thousand, twenty-one".