12339940 has 12 divisors (see below), whose sum is σ = 25913916. Its totient is φ = 4935968.

The previous prime is 12339919. The next prime is 12339941. The reversal of 12339940 is 4993321.

12339940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2742336 + 9597604 = 1656^2 + 3098^2 .

It is not an unprimeable number, because it can be changed into a prime (12339941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308479 + ... + 308518.

It is an arithmetic number, because the mean of its divisors is an integer number (2159493).

Almost surely, 2^12339940 is an apocalyptic number.

12339940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12339940 is an abundant number, since it is smaller than the sum of its proper divisors (13573976).

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

12339940 is a wasteful number, since it uses less digits than its factorization.

12339940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617006 (or 617004 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 12339940 is about 3512.8250739255. The cubic root of 12339940 is about 231.0846063526.

The spelling of 12339940 in words is "twelve million, three hundred thirty-nine thousand, nine hundred forty".