12266380 has 48 divisors (see below), whose sum is σ = 30171456. Its totient is φ = 4101120.

The previous prime is 12266377. The next prime is 12266393. The reversal of 12266380 is 8366221.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4672 + ... + 6808.

It is an arithmetic number, because the mean of its divisors is an integer number (628572).

Almost surely, 2^12266380 is an apocalyptic number.

12266380 is a gapful number since it is divisible by the number (10) 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 12266380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15085728).

12266380 is an abundant number, since it is smaller than the sum of its proper divisors (17905076).

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

12266380 is a wasteful number, since it uses less digits than its factorization.

12266380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194 (or 2192 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 12266380 is about 3502.3392182940. The cubic root of 12266380 is about 230.6245157071.

The spelling of 12266380 in words is "twelve million, two hundred sixty-six thousand, three hundred eighty".