12988443 has 16 divisors (see below), whose sum is σ = 19156256. Its totient is φ = 7776000.

The previous prime is 12988429. The next prime is 12988447. The reversal of 12988443 is 34488921.

It is not a de Polignac number, because 12988443 - 2⁴ = 12988427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12988447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3058 + ... + 5943.

It is an arithmetic number, because the mean of its divisors is an integer number (1197266).

Almost surely, 2^12988443 is an apocalyptic number.

12988443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12988443 is a deficient number, since it is larger than the sum of its proper divisors (6167813).

12988443 is a wasteful number, since it uses less digits than its factorization.

12988443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9054.

The product of its digits is 55296, while the sum is 39.

The square root of 12988443 is about 3603.9482515708. The cubic root of 12988443 is about 235.0637702294.

It can be divided in two parts, 12988 and 443, that added together give a palindrome (13431).

The spelling of 12988443 in words is "twelve million, nine hundred eighty-eight thousand, four hundred forty-three".