44421001 has 2 divisors, whose sum is σ = 44421002. Its totient is φ = 44421000.

The previous prime is 44420951. The next prime is 44421007. The reversal of 44421001 is 10012444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43243776 + 1177225 = 6576^2 + 1085^2 .

It is a cyclic number.

It is not a de Polignac number, because 44421001 - 2¹¹ = 44418953 is a prime.

It is not a weakly prime, because it can be changed into another prime (44421007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22210500 + 22210501.

It is an arithmetic number, because the mean of its divisors is an integer number (22210501).

Almost surely, 2^44421001 is an apocalyptic number.

It is an amenable number.

44421001 is a deficient number, since it is larger than the sum of its proper divisors (1).

44421001 is an equidigital number, since it uses as much as digits as its factorization.

44421001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 44421001 is about 6664.9081764117. The cubic root of 44421001 is about 354.1572311642.

Adding to 44421001 its reverse (10012444), we get a palindrome (54433445).

The spelling of 44421001 in words is "forty-four million, four hundred twenty-one thousand, one".