12851406 has 32 divisors (see below), whose sum is σ = 28684800. Its totient is φ = 4264920.

The previous prime is 12851401. The next prime is 12851417. The reversal of 12851406 is 60415821.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12851406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12851401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17515 + ... + 18233.

It is an arithmetic number, because the mean of its divisors is an integer number (896400).

Almost surely, 2^12851406 is an apocalyptic number.

12851406 is an abundant number, since it is smaller than the sum of its proper divisors (15833394).

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

12851406 is a wasteful number, since it uses less digits than its factorization.

12851406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061 (or 1055 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 12851406 is about 3584.8857722388. The cubic root of 12851406 is about 234.2341508928.

The spelling of 12851406 in words is "twelve million, eight hundred fifty-one thousand, four hundred six".