12421910 has 8 divisors (see below), whose sum is σ = 22359456. Its totient is φ = 4968760.

The previous prime is 12421891. The next prime is 12421921. The reversal of 12421910 is 1912421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 621086 + ... + 621105.

It is an arithmetic number, because the mean of its divisors is an integer number (2794932).

Almost surely, 2^12421910 is an apocalyptic number.

12421910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12421910 is a deficient number, since it is larger than the sum of its proper divisors (9937546).

12421910 is a wasteful number, since it uses less digits than its factorization.

12421910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242198.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 12421910 is about 3524.4730102527. The cubic root of 12421910 is about 231.5951495569.

It can be divided in two parts, 12421 and 910, that added together give a palindrome (13331).

The spelling of 12421910 in words is "twelve million, four hundred twenty-one thousand, nine hundred ten".