12455280 has 60 divisors (see below), whose sum is σ = 41831400. Its totient is φ = 3321216.

The previous prime is 12455257. The next prime is 12455291. The reversal of 12455280 is 8255421.

It is a happy number.

12455280 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 (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7930 + ... + 9369.

It is an arithmetic number, because the mean of its divisors is an integer number (697190).

Almost surely, 2^12455280 is an apocalyptic number.

12455280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12455280 is an abundant number, since it is smaller than the sum of its proper divisors (29376120).

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

12455280 is a wasteful number, since it uses less digits than its factorization.

12455280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17318 (or 17309 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 12455280 is about 3529.2038762304. The cubic root of 12455280 is about 231.8023485044.

The spelling of 12455280 in words is "twelve million, four hundred fifty-five thousand, two hundred eighty".