12867380 has 12 divisors (see below), whose sum is σ = 27021540. Its totient is φ = 5146944.

The previous prime is 12867367. The next prime is 12867391. The reversal of 12867380 is 8376821.

It can be written as a sum of positive squares in 2 ways, for example, as 7540516 + 5326864 = 2746^2 + 2308^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12867380.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 321665 + ... + 321704.

It is an arithmetic number, because the mean of its divisors is an integer number (2251795).

Almost surely, 2^12867380 is an apocalyptic number.

12867380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12867380 is an abundant number, since it is smaller than the sum of its proper divisors (14154160).

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

12867380 is a wasteful number, since it uses less digits than its factorization.

12867380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643378 (or 643376 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 12867380 is about 3587.1130453333. The cubic root of 12867380 is about 234.3311599187.

The spelling of 12867380 in words is "twelve million, eight hundred sixty-seven thousand, three hundred eighty".