12247830 has 48 divisors (see below), whose sum is σ = 36395424. Its totient is φ = 2799360.

The previous prime is 12247817. The next prime is 12247841. The reversal of 12247830 is 3874221.

It is a junction number, because it is equal to n+sod(n) for n = 12247794 and 12247803.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 9091 + ... + 10350.

It is an arithmetic number, because the mean of its divisors is an integer number (758238).

Almost surely, 2^12247830 is an apocalyptic number.

12247830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12247830 is an abundant number, since it is smaller than the sum of its proper divisors (24147594).

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

12247830 is a wasteful number, since it uses less digits than its factorization.

12247830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19461 (or 19458 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 12247830 is about 3499.6899862702. The cubic root of 12247830 is about 230.5082020348.

The spelling of 12247830 in words is "twelve million, two hundred forty-seven thousand, eight hundred thirty".