12247730 has 64 divisors (see below), whose sum is σ = 25878528. Its totient is φ = 4128960.

The previous prime is 12247709. The next prime is 12247747. The reversal of 12247730 is 3774221.

It is a self number, because there is not a number n which added to its sum of digits gives 12247730.

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 31 ways as a sum of consecutive naturals, for example, 118859 + ... + 118961.

It is an arithmetic number, because the mean of its divisors is an integer number (404352).

Almost surely, 2^12247730 is an apocalyptic number.

12247730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12247730 is an abundant number, since it is smaller than the sum of its proper divisors (13630798).

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

12247730 is a wasteful number, since it uses less digits than its factorization.

12247730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 12247730 is about 3499.6756992613. The cubic root of 12247730 is about 230.5075746888.

It can be divided in two parts, 12 and 247730, that added together give a palindrome (247742).

The spelling of 12247730 in words is "twelve million, two hundred forty-seven thousand, seven hundred thirty".