32043421 has 4 divisors (see below), whose sum is σ = 32083744. Its totient is φ = 32003100.

The previous prime is 32043409. The next prime is 32043437. The reversal of 32043421 is 12434023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12434023 = 7 ⋅1776289.

It is a cyclic number.

It is not a de Polignac number, because 32043421 - 2¹⁵ = 32010653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32043721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18945 + ... + 20566.

It is an arithmetic number, because the mean of its divisors is an integer number (8020936).

Almost surely, 2^32043421 is an apocalyptic number.

It is an amenable number.

32043421 is a deficient number, since it is larger than the sum of its proper divisors (40323).

32043421 is an equidigital number, since it uses as much as digits as its factorization.

32043421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40322.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 32043421 is about 5660.6908588970. The cubic root of 32043421 is about 317.6237424539.

Adding to 32043421 its reverse (12434023), we get a palindrome (44477444).

The spelling of 32043421 in words is "thirty-two million, forty-three thousand, four hundred twenty-one".