32226021 has 6 divisors (see below), whose sum is σ = 46548710. Its totient is φ = 21484008.

The previous prime is 32226017. The next prime is 32226037. The reversal of 32226021 is 12062223.

It can be written as a sum of positive squares in only one way, i.e., 30305025 + 1920996 = 5505^2 + 1386^2 .

It is not a de Polignac number, because 32226021 - 2² = 32226017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32225985 and 32226003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32226011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1790326 + ... + 1790343.

Almost surely, 2^32226021 is an apocalyptic number.

It is an amenable number.

32226021 is a deficient number, since it is larger than the sum of its proper divisors (14322689).

32226021 is a wasteful number, since it uses less digits than its factorization.

32226021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3580675 (or 3580672 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 32226021 is about 5676.7967199821. The cubic root of 32226021 is about 318.2259282100.

Adding to 32226021 its reverse (12062223), we get a palindrome (44288244).

The spelling of 32226021 in words is "thirty-two million, two hundred twenty-six thousand, twenty-one".