12238432 has 24 divisors (see below), whose sum is σ = 25363800. Its totient is φ = 5796864.

The previous prime is 12238427. The next prime is 12238439. The reversal of 12238432 is 23483221.

It is a junction number, because it is equal to n+sod(n) for n = 12238397 and 12238406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12238439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9457 + ... + 10672.

It is an arithmetic number, because the mean of its divisors is an integer number (1056825).

Almost surely, 2^12238432 is an apocalyptic number.

It is an amenable number.

12238432 is an abundant number, since it is smaller than the sum of its proper divisors (13125368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12238432 is a wasteful number, since it uses less digits than its factorization.

12238432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20158 (or 20150 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 12238432 is about 3498.3470382453. The cubic root of 12238432 is about 230.4492291282.

The spelling of 12238432 in words is "twelve million, two hundred thirty-eight thousand, four hundred thirty-two".