12532040 has 16 divisors (see below), whose sum is σ = 28197180. Its totient is φ = 5012800.

The previous prime is 12531977. The next prime is 12532061. The reversal of 12532040 is 4023521.

It can be written as a sum of positive squares in 2 ways, for example, as 11437924 + 1094116 = 3382^2 + 1046^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156611 + ... + 156690.

Almost surely, 2^12532040 is an apocalyptic number.

12532040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12532040 is an abundant number, since it is smaller than the sum of its proper divisors (15665140).

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

12532040 is a wasteful number, since it uses less digits than its factorization.

12532040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313312 (or 313308 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 12532040 is about 3540.0621463472. The cubic root of 12532040 is about 232.2775611786.

Adding to 12532040 its reverse (4023521), we get a palindrome (16555561).

The spelling of 12532040 in words is "twelve million, five hundred thirty-two thousand, forty".