12305256 has 32 divisors (see below), whose sum is σ = 30876000. Its totient is φ = 4086720.

The previous prime is 12305243. The next prime is 12305261. The reversal of 12305256 is 65250321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7170 + ... + 8718.

It is an arithmetic number, because the mean of its divisors is an integer number (964875).

Almost surely, 2^12305256 is an apocalyptic number.

It is an amenable number.

12305256 is an abundant number, since it is smaller than the sum of its proper divisors (18570744).

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

12305256 is a wasteful number, since it uses less digits than its factorization.

12305256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889 (or 1885 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 12305256 is about 3507.8848327732. The cubic root of 12305256 is about 230.8678992087.

Adding to 12305256 its reverse (65250321), we get a palindrome (77555577).

It can be divided in two parts, 12305 and 256, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 12305256 in words is "twelve million, three hundred five thousand, two hundred fifty-six".