12420984 has 32 divisors (see below), whose sum is σ = 32688000. Its totient is φ = 3922272.

The previous prime is 12420979. The next prime is 12421007. The reversal of 12420984 is 48902421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13164 + ... + 14075.

It is an arithmetic number, because the mean of its divisors is an integer number (1021500).

Almost surely, 2^12420984 is an apocalyptic number.

It is an amenable number.

12420984 is an abundant number, since it is smaller than the sum of its proper divisors (20267016).

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

12420984 is a wasteful number, since it uses less digits than its factorization.

12420984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27267 (or 27263 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 12420984 is about 3524.3416406472. The cubic root of 12420984 is about 231.5893946063.

The spelling of 12420984 in words is "twelve million, four hundred twenty thousand, nine hundred eighty-four".