12888938 has 8 divisors (see below), whose sum is σ = 19366788. Its totient is φ = 6433344.

The previous prime is 12888937. The next prime is 12888943. The reversal of 12888938 is 83988821.

12888938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6901129 + 5987809 = 2627^2 + 2447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12888938² = 332249445535688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12888892 and 12888901.

It is not an unprimeable number, because it can be changed into a prime (12888937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4031 + ... + 6482.

Almost surely, 2^12888938 is an apocalyptic number.

12888938 is a deficient number, since it is larger than the sum of its proper divisors (6477850).

12888938 is a wasteful number, since it uses less digits than its factorization.

12888938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11128.

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

The square root of 12888938 is about 3590.1167111948. The cubic root of 12888938 is about 234.4619529928.

The spelling of 12888938 in words is "twelve million, eight hundred eighty-eight thousand, nine hundred thirty-eight".