12420892 has 24 divisors (see below), whose sum is σ = 23918832. Its totient is φ = 5643440.

The previous prime is 12420887. The next prime is 12420917. The reversal of 12420892 is 29802421.

It is a self number, because there is not a number n which added to its sum of digits gives 12420892.

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, 4158 + ... + 6490.

It is an arithmetic number, because the mean of its divisors is an integer number (996618).

Almost surely, 2^12420892 is an apocalyptic number.

It is an amenable number.

12420892 is a deficient number, since it is larger than the sum of its proper divisors (11497940).

12420892 is a wasteful number, since it uses less digits than its factorization.

12420892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370 (or 2346 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 12420892 is about 3524.3285885400. The cubic root of 12420892 is about 231.5888228245.

The spelling of 12420892 in words is "twelve million, four hundred twenty thousand, eight hundred ninety-two".