12428880 has 40 divisors (see below), whose sum is σ = 38530272. Its totient is φ = 3314304.

The previous prime is 12428837. The next prime is 12428891. The reversal of 12428880 is 8882421.

12428880 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 (40).

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, 25654 + ... + 26133.

Almost surely, 2^12428880 is an apocalyptic number.

12428880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12428880 is an abundant number, since it is smaller than the sum of its proper divisors (26101392).

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

12428880 is a wasteful number, since it uses less digits than its factorization.

12428880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51803 (or 51797 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 12428880 is about 3525.4616718949. The cubic root of 12428880 is about 231.6384578826.

The spelling of 12428880 in words is "twelve million, four hundred twenty-eight thousand, eight hundred eighty".