12942420 has 48 divisors (see below), whose sum is σ = 38149440. Its totient is φ = 3269376.

The previous prime is 12942409. The next prime is 12942427. The reversal of 12942420 is 2424921.

12942420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12942427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4537 + ... + 6816.

It is an arithmetic number, because the mean of its divisors is an integer number (794780).

Almost surely, 2^12942420 is an apocalyptic number.

12942420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12942420 is an abundant number, since it is smaller than the sum of its proper divisors (25207020).

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

12942420 is a wasteful number, since it uses less digits than its factorization.

12942420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11384 (or 11382 counting only the distinct ones).

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

The square root of 12942420 is about 3597.5575047524. The cubic root of 12942420 is about 234.7858015013.

The spelling of 12942420 in words is "twelve million, nine hundred forty-two thousand, four hundred twenty".