12423642 has 32 divisors (see below), whose sum is σ = 30979584. Its totient is φ = 3226800.

The previous prime is 12423623. The next prime is 12423643. The reversal of 12423642 is 24632421.

It is not an unprimeable number, because it can be changed into a prime (12423643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12984 + ... + 13907.

It is an arithmetic number, because the mean of its divisors is an integer number (968112).

Almost surely, 2^12423642 is an apocalyptic number.

12423642 is an abundant number, since it is smaller than the sum of its proper divisors (18555942).

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

12423642 is a wasteful number, since it uses less digits than its factorization.

12423642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26914.

The product of its digits is 2304, while the sum is 24.

The square root of 12423642 is about 3524.7187121812. The cubic root of 12423642 is about 231.6059129086.

It can be divided in two parts, 1242 and 3642, that added together give a palindrome (4884).

The spelling of 12423642 in words is "twelve million, four hundred twenty-three thousand, six hundred forty-two".