32421231 has 6 divisors (see below), whose sum is σ = 46830680. Its totient is φ = 21614148.

The previous prime is 32421223. The next prime is 32421241. The reversal of 32421231 is 13212423.

It is not a de Polignac number, because 32421231 - 2³ = 32421223 is a prime.

It is a super-2 number, since 2×32421231² = 2102272439110722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32421241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1801171 + ... + 1801188.

Almost surely, 2^32421231 is an apocalyptic number.

32421231 is a deficient number, since it is larger than the sum of its proper divisors (14409449).

32421231 is a wasteful number, since it uses less digits than its factorization.

32421231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3602365 (or 3602362 counting only the distinct ones).

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

The square root of 32421231 is about 5693.9644361376. The cubic root of 32421231 is about 318.8671892051.

Adding to 32421231 its reverse (13212423), we get a palindrome (45633654).

The spelling of 32421231 in words is "thirty-two million, four hundred twenty-one thousand, two hundred thirty-one".