12886620 has 48 divisors (see below), whose sum is σ = 36240288. Its totient is φ = 3421440.

The previous prime is 12886589. The next prime is 12886649. The reversal of 12886620 is 2668821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23550 + ... + 24090.

It is an arithmetic number, because the mean of its divisors is an integer number (755006).

Almost surely, 2^12886620 is an apocalyptic number.

12886620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12886620 is an abundant number, since it is smaller than the sum of its proper divisors (23353668).

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

12886620 is a wasteful number, since it uses less digits than its factorization.

12886620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 12886620 is about 3589.7938659483. The cubic root of 12886620 is about 234.4478966138.

The spelling of 12886620 in words is "twelve million, eight hundred eighty-six thousand, six hundred twenty".