12320398 has 16 divisors (see below), whose sum is σ = 19530000. Its totient is φ = 5812992.

The previous prime is 12320369. The next prime is 12320401. The reversal of 12320398 is 89302321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12798 + ... + 13726.

It is an arithmetic number, because the mean of its divisors is an integer number (1220625).

Almost surely, 2^12320398 is an apocalyptic number.

12320398 is a deficient number, since it is larger than the sum of its proper divisors (7209602).

12320398 is a wasteful number, since it uses less digits than its factorization.

12320398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 12320398 is about 3510.0424498858. The cubic root of 12320398 is about 230.9625571015.

The spelling of 12320398 in words is "twelve million, three hundred twenty thousand, three hundred ninety-eight".