12990582 has 24 divisors (see below), whose sum is σ = 30705480. Its totient is φ = 3936480.

The previous prime is 12990557. The next prime is 12990583. The reversal of 12990582 is 28509921.

12990582 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12990583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32607 + ... + 33002.

It is an arithmetic number, because the mean of its divisors is an integer number (1279395).

Almost surely, 2^12990582 is an apocalyptic number.

12990582 is an abundant number, since it is smaller than the sum of its proper divisors (17714898).

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

12990582 is a wasteful number, since it uses less digits than its factorization.

12990582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65628 (or 65625 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 12990582 is about 3604.2449972220. The cubic root of 12990582 is about 235.0766733363.

The spelling of 12990582 in words is "twelve million, nine hundred ninety thousand, five hundred eighty-two".