12305072 has 20 divisors (see below), whose sum is σ = 25675440. Its totient is φ = 5679168.

The previous prime is 12305071. The next prime is 12305113. The reversal of 12305072 is 27050321.

12305072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (12305071) 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, 29372 + ... + 29787.

It is an arithmetic number, because the mean of its divisors is an integer number (1283772).

Almost surely, 2^12305072 is an apocalyptic number.

It is an amenable number.

12305072 is an abundant number, since it is smaller than the sum of its proper divisors (13370368).

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

12305072 is a wasteful number, since it uses less digits than its factorization.

12305072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59180 (or 59174 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 12305072 is about 3507.8586060444. The cubic root of 12305072 is about 230.8667484835.

Adding to 12305072 its reverse (27050321), we get a palindrome (39355393).

The spelling of 12305072 in words is "twelve million, three hundred five thousand, seventy-two".