12766920 has 32 divisors (see below), whose sum is σ = 38301120. Its totient is φ = 3404480.

The previous prime is 12766907. The next prime is 12766921. The reversal of 12766920 is 2966721.

It is not an unprimeable number, because it can be changed into a prime (12766921) by changing a digit.

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, 53076 + ... + 53315.

It is an arithmetic number, because the mean of its divisors is an integer number (1196910).

Almost surely, 2^12766920 is an apocalyptic number.

12766920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12766920 is an abundant number, since it is smaller than the sum of its proper divisors (25534200).

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

12766920 is a wasteful number, since it uses less digits than its factorization.

12766920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106405 (or 106401 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 12766920 is about 3573.0827026533. The cubic root of 12766920 is about 233.7197316560.

The spelling of 12766920 in words is "twelve million, seven hundred sixty-six thousand, nine hundred twenty".