12534040 has 16 divisors (see below), whose sum is σ = 28201680. Its totient is φ = 5013600.

The previous prime is 12534037. The next prime is 12534059. The reversal of 12534040 is 4043521.

It is a junction number, because it is equal to n+sod(n) for n = 12533999 and 12534017.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 156636 + ... + 156715.

It is an arithmetic number, because the mean of its divisors is an integer number (1762605).

Almost surely, 2^12534040 is an apocalyptic number.

12534040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12534040 is an abundant number, since it is smaller than the sum of its proper divisors (15667640).

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

12534040 is a wasteful number, since it uses less digits than its factorization.

12534040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313362 (or 313358 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 12534040 is about 3540.3446159943. The cubic root of 12534040 is about 232.2899169858.

Adding to 12534040 its reverse (4043521), we get a palindrome (16577561).

The spelling of 12534040 in words is "twelve million, five hundred thirty-four thousand, forty".