12198642 has 16 divisors (see below), whose sum is σ = 24626592. Its totient is φ = 4028000.

The previous prime is 12198631. The next prime is 12198649. The reversal of 12198642 is 24689121.

12198642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12198649) 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, 8859 + ... + 10142.

It is an arithmetic number, because the mean of its divisors is an integer number (1539162).

Almost surely, 2^12198642 is an apocalyptic number.

12198642 is an abundant number, since it is smaller than the sum of its proper divisors (12427950).

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

12198642 is a wasteful number, since it uses less digits than its factorization.

12198642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19113.

The product of its digits is 6912, while the sum is 33.

The square root of 12198642 is about 3492.6554367701. The cubic root of 12198642 is about 230.1992098912.

The spelling of 12198642 in words is "twelve million, one hundred ninety-eight thousand, six hundred forty-two".