12421768 has 16 divisors (see below), whose sum is σ = 23366160. Its totient is φ = 6190800.

The previous prime is 12421757. The next prime is 12421789. The reversal of 12421768 is 86712421.

It is a plaindrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303 + ... + 4993.

It is an arithmetic number, because the mean of its divisors is an integer number (1460385).

Almost surely, 2^12421768 is an apocalyptic number.

It is an amenable number.

12421768 is a deficient number, since it is larger than the sum of its proper divisors (10944392).

12421768 is a wasteful number, since it uses less digits than its factorization.

12421768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028 (or 5024 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 12421768 is about 3524.4528653395. The cubic root of 12421768 is about 231.5942670669.

The spelling of 12421768 in words is "twelve million, four hundred twenty-one thousand, seven hundred sixty-eight".