12932040 has 128 divisors (see below), whose sum is σ = 43182720. Its totient is φ = 3072000.

The previous prime is 12932021. The next prime is 12932041. The reversal of 12932040 is 4023921.

It is a junction number, because it is equal to n+sod(n) for n = 12931998 and 12932016.

It is not an unprimeable number, because it can be changed into a prime (12932041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127990 + ... + 128090.

It is an arithmetic number, because the mean of its divisors is an integer number (337365).

Almost surely, 2^12932040 is an apocalyptic number.

12932040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12932040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21591360).

12932040 is an abundant number, since it is smaller than the sum of its proper divisors (30250680).

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

12932040 is a wasteful number, since it uses less digits than its factorization.

12932040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12932040 is about 3596.1145699213. The cubic root of 12932040 is about 234.7230175595.

Adding to 12932040 its reverse (4023921), we get a palindrome (16955961).

It can be divided in two parts, 1293 and 2040, that added together give a palindrome (3333).

The spelling of 12932040 in words is "twelve million, nine hundred thirty-two thousand, forty".