12738814 has 16 divisors (see below), whose sum is σ = 22072176. Its totient is φ = 5449600.

The previous prime is 12738811. The next prime is 12738821. The reversal of 12738814 is 41883721.

It is a happy number.

12738814 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 12738814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12738811) 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, 16657 + ... + 17404.

It is an arithmetic number, because the mean of its divisors is an integer number (1379511).

Almost surely, 2^12738814 is an apocalyptic number.

12738814 is a deficient number, since it is larger than the sum of its proper divisors (9333362).

12738814 is a wasteful number, since it uses less digits than its factorization.

12738814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34091.

The product of its digits is 10752, while the sum is 34.

The square root of 12738814 is about 3569.1475172652. The cubic root of 12738814 is about 233.5480965993.

The spelling of 12738814 in words is "twelve million, seven hundred thirty-eight thousand, eight hundred fourteen".