12880032 has 48 divisors (see below), whose sum is σ = 36886752. Its totient is φ = 3902720.

The previous prime is 12880019. The next prime is 12880061. The reversal of 12880032 is 23008821.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 12879984 and 12880011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5043 + ... + 7154.

It is an arithmetic number, because the mean of its divisors is an integer number (768474).

Almost surely, 2^12880032 is an apocalyptic number.

12880032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12880032 is an abundant number, since it is smaller than the sum of its proper divisors (24006720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12880032 is a wasteful number, since it uses less digits than its factorization.

12880032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12221 (or 12213 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 12880032 is about 3588.8761472082. The cubic root of 12880032 is about 234.4079376998.

Adding to 12880032 its reverse (23008821), we get a palindrome (35888853).

The spelling of 12880032 in words is "twelve million, eight hundred eighty thousand, thirty-two".