12238418 has 8 divisors (see below), whose sum is σ = 18805500. Its totient is φ = 5969920.

The previous prime is 12238417. The next prime is 12238423. The reversal of 12238418 is 81483221.

It can be written as a sum of positive squares in 2 ways, for example, as 12229009 + 9409 = 3497^2 + 97^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12238417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74543 + ... + 74706.

Almost surely, 2^12238418 is an apocalyptic number.

12238418 is a deficient number, since it is larger than the sum of its proper divisors (6567082).

12238418 is a wasteful number, since it uses less digits than its factorization.

12238418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149292.

The product of its digits is 3072, while the sum is 29.

The square root of 12238418 is about 3498.3450372998. The cubic root of 12238418 is about 230.4491412550.

The spelling of 12238418 in words is "twelve million, two hundred thirty-eight thousand, four hundred eighteen".