12442388 has 24 divisors (see below), whose sum is σ = 25123392. Its totient is φ = 5281344.

The previous prime is 12442387. The next prime is 12442411. The reversal of 12442388 is 88324421.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920 + ... + 5072.

It is an arithmetic number, because the mean of its divisors is an integer number (1046808).

Almost surely, 2^12442388 is an apocalyptic number.

It is an amenable number.

12442388 is an abundant number, since it is smaller than the sum of its proper divisors (12681004).

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

12442388 is a wasteful number, since it uses less digits than its factorization.

12442388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4271 (or 4269 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 12442388 is about 3527.3769291075. The cubic root of 12442388 is about 231.7223442136.

The spelling of 12442388 in words is "twelve million, four hundred forty-two thousand, three hundred eighty-eight".