12276380 has 24 divisors (see below), whose sum is σ = 27297648. Its totient is φ = 4621568.

The previous prime is 12276377. The next prime is 12276389. The reversal of 12276380 is 8367221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12276389) 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 7 ways as a sum of consecutive naturals, for example, 17714 + ... + 18393.

It is an arithmetic number, because the mean of its divisors is an integer number (1137402).

Almost surely, 2^12276380 is an apocalyptic number.

12276380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12276380 is an abundant number, since it is smaller than the sum of its proper divisors (15021268).

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

12276380 is a wasteful number, since it uses less digits than its factorization.

12276380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36133 (or 36131 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 12276380 is about 3503.7665447344. The cubic root of 12276380 is about 230.6871698542.

The spelling of 12276380 in words is "twelve million, two hundred seventy-six thousand, three hundred eighty".