12032638 has 4 divisors (see below), whose sum is σ = 18048960. Its totient is φ = 6016318.

The previous prime is 12032623. The next prime is 12032687. The reversal of 12032638 is 83623021.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3008158 + ... + 3008161.

It is an arithmetic number, because the mean of its divisors is an integer number (4512240).

Almost surely, 2^12032638 is an apocalyptic number.

12032638 is a deficient number, since it is larger than the sum of its proper divisors (6016322).

12032638 is an equidigital number, since it uses as much as digits as its factorization.

12032638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016321.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 12032638 is about 3468.8093057993. The cubic root of 12032638 is about 229.1502227466.

Adding to 12032638 its reverse (83623021), we get a palindrome (95655659).

The spelling of 12032638 in words is "twelve million, thirty-two thousand, six hundred thirty-eight".