12420942 has 16 divisors (see below), whose sum is σ = 25249872. Its totient is φ = 4072320.

The previous prime is 12420923. The next prime is 12420973. The reversal of 12420942 is 24902421.

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, 16603 + ... + 17334.

It is an arithmetic number, because the mean of its divisors is an integer number (1578117).

Almost surely, 2^12420942 is an apocalyptic number.

12420942 is an abundant number, since it is smaller than the sum of its proper divisors (12828930).

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

12420942 is a wasteful number, since it uses less digits than its factorization.

12420942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34003.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 12420942 is about 3524.3356820825. The cubic root of 12420942 is about 231.5891335758.

It can be divided in two parts, 124209 and 42, that added together give a triangular number (124251 = T₄₉₈).

The spelling of 12420942 in words is "twelve million, four hundred twenty thousand, nine hundred forty-two".