12380976 has 60 divisors (see below), whose sum is σ = 34973952. Its totient is φ = 4088448.

The previous prime is 12380971. The next prime is 12381011. The reversal of 12380976 is 67908321.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12380976.

It is not an unprimeable number, because it can be changed into a prime (12380971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17950 + ... + 18626.

Almost surely, 2^12380976 is an apocalyptic number.

12380976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12380976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17486976).

12380976 is an abundant number, since it is smaller than the sum of its proper divisors (22592976).

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

12380976 is a wasteful number, since it uses less digits than its factorization.

12380976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 809 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 12380976 is about 3518.6611090015. The cubic root of 12380976 is about 231.3404772815.

The spelling of 12380976 in words is "twelve million, three hundred eighty thousand, nine hundred seventy-six".