12888466 has 4 divisors (see below), whose sum is σ = 19332702. Its totient is φ = 6444232.

The previous prime is 12888461. The next prime is 12888503. The reversal of 12888466 is 66488821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66488821 = 7 ⋅9498403.

It can be written as a sum of positive squares in only one way, i.e., 11122225 + 1766241 = 3335^2 + 1329^2 .

It is a super-2 number, since 2×12888466² = 332225111666312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12888461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222115 + ... + 3222118.

Almost surely, 2^12888466 is an apocalyptic number.

12888466 is a deficient number, since it is larger than the sum of its proper divisors (6444236).

12888466 is an equidigital number, since it uses as much as digits as its factorization.

12888466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6444235.

The product of its digits is 147456, while the sum is 43.

The square root of 12888466 is about 3590.0509745685. The cubic root of 12888466 is about 234.4590909160.

The spelling of 12888466 in words is "twelve million, eight hundred eighty-eight thousand, four hundred sixty-six".