32430421 has 4 divisors (see below), whose sum is σ = 32645344. Its totient is φ = 32215500.

The previous prime is 32430413. The next prime is 32430427. The reversal of 32430421 is 12403423.

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.

It is a cyclic number.

It is not a de Polignac number, because 32430421 - 2³ = 32430413 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 (32430427) 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, 107235 + ... + 107536.

It is an arithmetic number, because the mean of its divisors is an integer number (8161336).

Almost surely, 2^32430421 is an apocalyptic number.

It is an amenable number.

32430421 is a deficient number, since it is larger than the sum of its proper divisors (214923).

32430421 is a wasteful number, since it uses less digits than its factorization.

32430421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214922.

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

The square root of 32430421 is about 5694.7713738130. The cubic root of 32430421 is about 318.8973146563.

Adding to 32430421 its reverse (12403423), we get a palindrome (44833844).

The spelling of 32430421 in words is "thirty-two million, four hundred thirty thousand, four hundred twenty-one".