12820588 has 12 divisors (see below), whose sum is σ = 24475752. Its totient is φ = 5827520.

The previous prime is 12820583. The next prime is 12820603. The reversal of 12820588 is 88502821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12820583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145645 + ... + 145732.

It is an arithmetic number, because the mean of its divisors is an integer number (2039646).

Almost surely, 2^12820588 is an apocalyptic number.

It is an amenable number.

12820588 is a deficient number, since it is larger than the sum of its proper divisors (11655164).

12820588 is a wasteful number, since it uses less digits than its factorization.

12820588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291392 (or 291390 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 12820588 is about 3580.5848684258. The cubic root of 12820588 is about 234.0467678699.

The spelling of 12820588 in words is "twelve million, eight hundred twenty thousand, five hundred eighty-eight".