44038921 has 2 divisors, whose sum is σ = 44038922. Its totient is φ = 44038920.

The previous prime is 44038913. The next prime is 44038931. The reversal of 44038921 is 12983044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25857225 + 18181696 = 5085^2 + 4264^2 .

It is a cyclic number.

It is not a de Polignac number, because 44038921 - 2³ = 44038913 is a prime.

It is not a weakly prime, because it can be changed into another prime (44038931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22019460 + 22019461.

It is an arithmetic number, because the mean of its divisors is an integer number (22019461).

Almost surely, 2^44038921 is an apocalyptic number.

It is an amenable number.

44038921 is a deficient number, since it is larger than the sum of its proper divisors (1).

44038921 is an equidigital number, since it uses as much as digits as its factorization.

44038921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 44038921 is about 6636.1827129759. The cubic root of 44038921 is about 353.1388973151.

The spelling of 44038921 in words is "forty-four million, thirty-eight thousand, nine hundred twenty-one".