12851838 has 16 divisors (see below), whose sum is σ = 28559760. Its totient is φ = 4283928.

The previous prime is 12851837. The next prime is 12851849. The reversal of 12851838 is 83815821.

12851838 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12851831) 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, 118945 + ... + 119052.

It is an arithmetic number, because the mean of its divisors is an integer number (1784985).

Almost surely, 2^12851838 is an apocalyptic number.

12851838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12851838 is an abundant number, since it is smaller than the sum of its proper divisors (15707922).

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

12851838 is a wasteful number, since it uses less digits than its factorization.

12851838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238008 (or 238002 counting only the distinct ones).

The product of its digits is 15360, while the sum is 36.

The square root of 12851838 is about 3584.9460246983. The cubic root of 12851838 is about 234.2367754570.

It can be divided in two parts, 12851 and 838, that added together give a square (13689 = 117²).

The spelling of 12851838 in words is "twelve million, eight hundred fifty-one thousand, eight hundred thirty-eight".