12340398 has 32 divisors (see below), whose sum is σ = 28866816. Its totient is φ = 3443328.

The previous prime is 12340373. The next prime is 12340403. The reversal of 12340398 is 89304321.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1611 + ... + 5222.

It is an arithmetic number, because the mean of its divisors is an integer number (902088).

Almost surely, 2^12340398 is an apocalyptic number.

12340398 is an abundant number, since it is smaller than the sum of its proper divisors (16526418).

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

12340398 is a wasteful number, since it uses less digits than its factorization.

12340398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6888.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 12340398 is about 3512.8902630171. The cubic root of 12340398 is about 231.0874652384.

The spelling of 12340398 in words is "twelve million, three hundred forty thousand, three hundred ninety-eight".