32442021 has 12 divisors (see below), whose sum is σ = 46989280. Its totient is φ = 21568680.

The previous prime is 32442017. The next prime is 32442031. The reversal of 32442021 is 12024423.

It is not a de Polignac number, because 32442021 - 2² = 32442017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32441985 and 32442003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32442031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1345 + ... + 8166.

Almost surely, 2^32442021 is an apocalyptic number.

It is an amenable number.

32442021 is a deficient number, since it is larger than the sum of its proper divisors (14547259).

32442021 is a wasteful number, since it uses less digits than its factorization.

32442021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9896 (or 9893 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 32442021 is about 5695.7897608672. The cubic root of 32442021 is about 318.9353321284.

Adding to 32442021 its reverse (12024423), we get a palindrome (44466444).

The spelling of 32442021 in words is "thirty-two million, four hundred forty-two thousand, twenty-one".