12136380 has 48 divisors (see below), whose sum is σ = 34500480. Its totient is φ = 3187008.

The previous prime is 12136373. The next prime is 12136393. The reversal of 12136380 is 8363121.

It is a self number, because there is not a number n which added to its sum of digits gives 12136380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2511 + ... + 5529.

It is an arithmetic number, because the mean of its divisors is an integer number (718760).

Almost surely, 2^12136380 is an apocalyptic number.

12136380 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 12136380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17250240).

12136380 is an abundant number, since it is smaller than the sum of its proper divisors (22364100).

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

12136380 is a wasteful number, since it uses less digits than its factorization.

12136380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098 (or 3096 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 12136380 is about 3483.7307588274. The cubic root of 12136380 is about 229.8068952583.

The spelling of 12136380 in words is "twelve million, one hundred thirty-six thousand, three hundred eighty".