32444021 has 2 divisors, whose sum is σ = 32444022. Its totient is φ = 32444020.

The previous prime is 32444017. The next prime is 32444029. The reversal of 32444021 is 12044423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26635921 + 5808100 = 5161^2 + 2410^2 .

It is a cyclic number.

It is not a de Polignac number, because 32444021 - 2² = 32444017 is a prime.

It is a super-2 number, since 2×32444021² = 2105228997296882, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 32443984 and 32444002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32444029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16222010 + 16222011.

It is an arithmetic number, because the mean of its divisors is an integer number (16222011).

Almost surely, 2^32444021 is an apocalyptic number.

It is an amenable number.

32444021 is a deficient number, since it is larger than the sum of its proper divisors (1).

32444021 is an equidigital number, since it uses as much as digits as its factorization.

32444021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 32444021 is about 5695.9653264394. The cubic root of 32444021 is about 318.9418859490.

Adding to 32444021 its reverse (12044423), we get a palindrome (44488444).

The spelling of 32444021 in words is "thirty-two million, four hundred forty-four thousand, twenty-one".