12820258 has 16 divisors (see below), whose sum is σ = 21124800. Its totient is φ = 5786800.

The previous prime is 12820243. The next prime is 12820259. The reversal of 12820258 is 85202821.

12820258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12820259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1323 + ... + 5233.

It is an arithmetic number, because the mean of its divisors is an integer number (1320300).

Almost surely, 2^12820258 is an apocalyptic number.

12820258 is a deficient number, since it is larger than the sum of its proper divisors (8304542).

12820258 is a wasteful number, since it uses less digits than its factorization.

12820258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 12820258 is about 3580.5387862723. The cubic root of 12820258 is about 234.0447597432.

The spelling of 12820258 in words is "twelve million, eight hundred twenty thousand, two hundred fifty-eight".