12888630 has 48 divisors (see below), whose sum is σ = 33999264. Its totient is φ = 3386880.

The previous prime is 12888619. The next prime is 12888641. The reversal of 12888630 is 3688821.

12888630 is a `hidden beast` number, since 12 + 8 + 8 + 8 + 630 = 666.

It is an interprime number because it is at equal distance from previous prime (12888619) and next prime (12888641).

It is a super-2 number, since 2×12888630² = 332233566553800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5382 + ... + 7398.

It is an arithmetic number, because the mean of its divisors is an integer number (708318).

Almost surely, 2^12888630 is an apocalyptic number.

12888630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12888630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16999632).

12888630 is an abundant number, since it is smaller than the sum of its proper divisors (21110634).

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

12888630 is a wasteful number, since it uses less digits than its factorization.

12888630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101 (or 2098 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 12888630 is about 3590.0738153971. The cubic root of 12888630 is about 234.4600853743.

The spelling of 12888630 in words is "twelve million, eight hundred eighty-eight thousand, six hundred thirty".