12336840 has 64 divisors (see below), whose sum is σ = 41126400. Its totient is φ = 3289536.

The previous prime is 12336839. The next prime is 12336869. The reversal of 12336840 is 4863321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 4632 + ... + 6791.

It is an arithmetic number, because the mean of its divisors is an integer number (642600).

Almost surely, 2^12336840 is an apocalyptic number.

12336840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12336840 is an abundant number, since it is smaller than the sum of its proper divisors (28789560).

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

12336840 is a wasteful number, since it uses less digits than its factorization.

12336840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11443 (or 11433 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 12336840 is about 3512.3838059073. The cubic root of 12336840 is about 231.0652539550.

It can be divided in two parts, 123 and 36840, that added together give a palindrome (36963).

The spelling of 12336840 in words is "twelve million, three hundred thirty-six thousand, eight hundred forty".