12888946 has 16 divisors (see below), whose sum is σ = 22141440. Its totient is φ = 5512320.

The previous prime is 12888943. The next prime is 12888971. The reversal of 12888946 is 64988821.

12888946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12888946² = 332249857981832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12888896 and 12888905.

It is not an unprimeable number, because it can be changed into a prime (12888943) 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, 12511 + ... + 13501.

It is an arithmetic number, because the mean of its divisors is an integer number (1383840).

Almost surely, 2^12888946 is an apocalyptic number.

12888946 is a deficient number, since it is larger than the sum of its proper divisors (9252494).

12888946 is an equidigital number, since it uses as much as digits as its factorization.

12888946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929.

The product of its digits is 221184, while the sum is 46.

The square root of 12888946 is about 3590.1178253645. The cubic root of 12888946 is about 234.4620015020.

The spelling of 12888946 in words is "twelve million, eight hundred eighty-eight thousand, nine hundred forty-six".