12667380 has 96 divisors (see below), whose sum is σ = 41005440. Its totient is φ = 2887680.

The previous prime is 12667379. The next prime is 12667381. The reversal of 12667380 is 8376621.

It is an interprime number because it is at equal distance from previous prime (12667379) and next prime (12667381).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12667381) 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 31 ways as a sum of consecutive naturals, for example, 10656 + ... + 11784.

It is an arithmetic number, because the mean of its divisors is an integer number (427140).

Almost surely, 2^12667380 is an apocalyptic number.

12667380 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 12667380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20502720).

12667380 is an abundant number, since it is smaller than the sum of its proper divisors (28338060).

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

12667380 is a wasteful number, since it uses less digits than its factorization.

12667380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1167 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 12667380 is about 3559.1262972814. The cubic root of 12667380 is about 233.1107310134.

It can be divided in two parts, 1266 and 7380, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 12667380 in words is "twelve million, six hundred sixty-seven thousand, three hundred eighty".