12538880 has 88 divisors (see below), whose sum is σ = 31441920. Its totient is φ = 4792320.

The previous prime is 12538873. The next prime is 12538891. The reversal of 12538880 is 8883521.

It is a self number, because there is not a number n which added to its sum of digits gives 12538880.

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, 158681 + ... + 158759.

Almost surely, 2^12538880 is an apocalyptic number.

12538880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12538880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15720960).

12538880 is an abundant number, since it is smaller than the sum of its proper divisors (18903040).

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

12538880 is an equidigital number, since it uses as much as digits as its factorization.

12538880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 12538880 is about 3541.0280992955. The cubic root of 12538880 is about 232.3198126012.

The spelling of 12538880 in words is "twelve million, five hundred thirty-eight thousand, eight hundred eighty".