12042398 has 4 divisors (see below), whose sum is σ = 18063600. Its totient is φ = 6021198.

The previous prime is 12042391. The next prime is 12042419. The reversal of 12042398 is 89324021.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12042398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12042391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3010598 + ... + 3010601.

It is an arithmetic number, because the mean of its divisors is an integer number (4515900).

Almost surely, 2^12042398 is an apocalyptic number.

12042398 is a deficient number, since it is larger than the sum of its proper divisors (6021202).

12042398 is an equidigital number, since it uses as much as digits as its factorization.

12042398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6021201.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 12042398 is about 3470.2158434311. The cubic root of 12042398 is about 229.2121626623.

The spelling of 12042398 in words is "twelve million, forty-two thousand, three hundred ninety-eight".