12340920 has 32 divisors (see below), whose sum is σ = 37023120. Its totient is φ = 3290880.

The previous prime is 12340919. The next prime is 12340961. The reversal of 12340920 is 2904321.

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 7 ways as a sum of consecutive naturals, for example, 51301 + ... + 51540.

Almost surely, 2^12340920 is an apocalyptic number.

12340920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12340920 is an abundant number, since it is smaller than the sum of its proper divisors (24682200).

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

12340920 is a wasteful number, since it uses less digits than its factorization.

12340920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102855 (or 102851 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12340920 is about 3512.9645600262. The cubic root of 12340920 is about 231.0907235330.

The spelling of 12340920 in words is "twelve million, three hundred forty thousand, nine hundred twenty".