12045638 has 8 divisors (see below), whose sum is σ = 19711080. Its totient is φ = 5475280.

The previous prime is 12045623. The next prime is 12045641. The reversal of 12045638 is 83654021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12045638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273743 + ... + 273786.

It is an arithmetic number, because the mean of its divisors is an integer number (2463885).

Almost surely, 2^12045638 is an apocalyptic number.

12045638 is a deficient number, since it is larger than the sum of its proper divisors (7665442).

12045638 is a wasteful number, since it uses less digits than its factorization.

12045638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547542.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 12045638 is about 3470.6826417868. The cubic root of 12045638 is about 229.2327172842.

Adding to 12045638 its reverse (83654021), we get a palindrome (95699659).

The spelling of 12045638 in words is "twelve million, forty-five thousand, six hundred thirty-eight".