12885438 has 16 divisors (see below), whose sum is σ = 25808256. Its totient is φ = 4288920.

The previous prime is 12885437. The next prime is 12885443. The reversal of 12885438 is 83458821.

It is a junction number, because it is equal to n+sod(n) for n = 12885396 and 12885405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12885437) 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, 5145 + ... + 7227.

It is an arithmetic number, because the mean of its divisors is an integer number (1613016).

Almost surely, 2^12885438 is an apocalyptic number.

12885438 is an abundant number, since it is smaller than the sum of its proper divisors (12922818).

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

12885438 is a wasteful number, since it uses less digits than its factorization.

12885438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119.

The product of its digits is 61440, while the sum is 39.

The square root of 12885438 is about 3589.6292287644. The cubic root of 12885438 is about 234.4407283032.

The spelling of 12885438 in words is "twelve million, eight hundred eighty-five thousand, four hundred thirty-eight".