12385140 has 24 divisors (see below), whose sum is σ = 34678560. Its totient is φ = 3302688.

The previous prime is 12385081. The next prime is 12385159. The reversal of 12385140 is 4158321.

It is a self number, because there is not a number n which added to its sum of digits gives 12385140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103150 + ... + 103269.

It is an arithmetic number, because the mean of its divisors is an integer number (1444940).

Almost surely, 2^12385140 is an apocalyptic number.

12385140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12385140 is an abundant number, since it is smaller than the sum of its proper divisors (22293420).

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

12385140 is a wasteful number, since it uses less digits than its factorization.

12385140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206431 (or 206429 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 12385140 is about 3519.2527615958. The cubic root of 12385140 is about 231.3664093721.

The spelling of 12385140 in words is "twelve million, three hundred eighty-five thousand, one hundred forty".