32243421 has 24 divisors (see below), whose sum is σ = 51183264. Its totient is φ = 17992800.

The previous prime is 32243381. The next prime is 32243459. The reversal of 32243421 is 12434223.

It is not a de Polignac number, because 32243421 - 2⁶ = 32243357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32243461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3771 + ... + 8871.

It is an arithmetic number, because the mean of its divisors is an integer number (2132636).

Almost surely, 2^32243421 is an apocalyptic number.

It is an amenable number.

32243421 is a deficient number, since it is larger than the sum of its proper divisors (18939843).

32243421 is a wasteful number, since it uses less digits than its factorization.

32243421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5161 (or 5154 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 32243421 is about 5678.3290676043. The cubic root of 32243421 is about 318.2831918199.

Adding to 32243421 its reverse (12434223), we get a palindrome (44677644).

The spelling of 32243421 in words is "thirty-two million, two hundred forty-three thousand, four hundred twenty-one".