12421646 has 8 divisors (see below), whose sum is σ = 18683544. Its totient is φ = 6193800.

The previous prime is 12421639. The next prime is 12421681. The reversal of 12421646 is 64612421.

12421646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7580 + ... + 9071.

It is an arithmetic number, because the mean of its divisors is an integer number (2335443).

Almost surely, 2^12421646 is an apocalyptic number.

12421646 is a deficient number, since it is larger than the sum of its proper divisors (6261898).

12421646 is a wasteful number, since it uses less digits than its factorization.

12421646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17026.

The product of its digits is 2304, while the sum is 26.

The square root of 12421646 is about 3524.4355576461. The cubic root of 12421646 is about 231.5935088658.

The spelling of 12421646 in words is "twelve million, four hundred twenty-one thousand, six hundred forty-six".