12260556 has 72 divisors (see below), whose sum is σ = 38648064. Its totient is φ = 3183840.

The previous prime is 12260539. The next prime is 12260581. The reversal of 12260556 is 65506221.

12260556 is a `hidden beast` number, since 1 + 2 + 2 + 605 + 56 = 666.

12260556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 561 + ... + 4983.

Almost surely, 2^12260556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12260556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19324032).

12260556 is an abundant number, since it is smaller than the sum of its proper divisors (26387508).

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

12260556 is a wasteful number, since it uses less digits than its factorization.

12260556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4451 (or 4446 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 12260556 is about 3501.5076752736. The cubic root of 12260556 is about 230.5880102396.

Adding to 12260556 its reverse (65506221), we get a palindrome (77766777).

The spelling of 12260556 in words is "twelve million, two hundred sixty thousand, five hundred fifty-six".