12455808 has 64 divisors (see below), whose sum is σ = 33456000. Its totient is φ = 4105728.

The previous prime is 12455803. The next prime is 12455809. The reversal of 12455808 is 80855421.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12455801) 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 7 ways as a sum of consecutive naturals, for example, 62493 + ... + 62691.

It is an arithmetic number, because the mean of its divisors is an integer number (522750).

Almost surely, 2^12455808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12455808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16728000).

12455808 is an abundant number, since it is smaller than the sum of its proper divisors (21000192).

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

12455808 is a wasteful number, since it uses less digits than its factorization.

12455808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 12455808 is about 3529.2786798438. The cubic root of 12455808 is about 231.8056239536.

The spelling of 12455808 in words is "twelve million, four hundred fifty-five thousand, eight hundred eight".