12540808 has 32 divisors (see below), whose sum is σ = 27014400. Its totient is φ = 5346432.

The previous prime is 12540799. The next prime is 12540809. The reversal of 12540808 is 80804521.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12540809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12916 + ... + 13852.

It is an arithmetic number, because the mean of its divisors is an integer number (844200).

Almost surely, 2^12540808 is an apocalyptic number.

It is an amenable number.

12540808 is an abundant number, since it is smaller than the sum of its proper divisors (14473592).

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

12540808 is a wasteful number, since it uses less digits than its factorization.

12540808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 12540808 is about 3541.3003261514. The cubic root of 12540808 is about 232.3317192905.

The spelling of 12540808 in words is "twelve million, five hundred forty thousand, eight hundred eight".