12534240 has 48 divisors (see below), whose sum is σ = 39484368. Its totient is φ = 3342336.

The previous prime is 12534239. The next prime is 12534251. The reversal of 12534240 is 4243521.

12534240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12577 + ... + 13536.

It is an arithmetic number, because the mean of its divisors is an integer number (822591).

Almost surely, 2^12534240 is an apocalyptic number.

12534240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12534240 is an abundant number, since it is smaller than the sum of its proper divisors (26950128).

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

12534240 is a wasteful number, since it uses less digits than its factorization.

12534240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26131 (or 26123 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 12534240 is about 3540.3728617195. The cubic root of 12534240 is about 232.2911524943.

Adding to 12534240 its reverse (4243521), we get a palindrome (16777761).

The spelling of 12534240 in words is "twelve million, five hundred thirty-four thousand, two hundred forty".