12855340 has 24 divisors (see below), whose sum is σ = 27069840. Its totient is φ = 5128128.

The previous prime is 12855329. The next prime is 12855341. The reversal of 12855340 is 4355821.

It is a junction number, because it is equal to n+sod(n) for n = 12855299 and 12855308.

It is not an unprimeable number, because it can be changed into a prime (12855341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9846 + ... + 11074.

It is an arithmetic number, because the mean of its divisors is an integer number (1127910).

Almost surely, 2^12855340 is an apocalyptic number.

12855340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12855340 is an abundant number, since it is smaller than the sum of its proper divisors (14214500).

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

12855340 is a wasteful number, since it uses less digits than its factorization.

12855340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761 (or 1759 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 12855340 is about 3585.4344227722. The cubic root of 12855340 is about 234.2580492673.

The spelling of 12855340 in words is "twelve million, eight hundred fifty-five thousand, three hundred forty".