12988838 has 16 divisors (see below), whose sum is σ = 20172240. Its totient is φ = 6268416.

The previous prime is 12988831. The next prime is 12988849. The reversal of 12988838 is 83888921.

It is a junction number, because it is equal to n+sod(n) for n = 12988792 and 12988801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12988831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6806 + ... + 8502.

It is an arithmetic number, because the mean of its divisors is an integer number (1260765).

Almost surely, 2^12988838 is an apocalyptic number.

12988838 is a deficient number, since it is larger than the sum of its proper divisors (7183402).

12988838 is a wasteful number, since it uses less digits than its factorization.

12988838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831.

The product of its digits is 221184, while the sum is 47.

The square root of 12988838 is about 3604.0030521630. The cubic root of 12988838 is about 235.0661530977.

The spelling of 12988838 in words is "twelve million, nine hundred eighty-eight thousand, eight hundred thirty-eight".