12966420 has 24 divisors (see below), whose sum is σ = 36306144. Its totient is φ = 3457696.

The previous prime is 12966413. The next prime is 12966431. The reversal of 12966420 is 2466921.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107994 + ... + 108113.

It is an arithmetic number, because the mean of its divisors is an integer number (1512756).

Almost surely, 2^12966420 is an apocalyptic number.

12966420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12966420 is an abundant number, since it is smaller than the sum of its proper divisors (23339724).

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

12966420 is a wasteful number, since it uses less digits than its factorization.

12966420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216119 (or 216117 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 12966420 is about 3600.8915562677. The cubic root of 12966420 is about 234.9308382561.

The spelling of 12966420 in words is "twelve million, nine hundred sixty-six thousand, four hundred twenty".