12421474 has 16 divisors (see below), whose sum is σ = 20123712. Its totient is φ = 5716368.

The previous prime is 12421439. The next prime is 12421481. The reversal of 12421474 is 47412421.

12421474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16347 + ... + 17089.

It is an arithmetic number, because the mean of its divisors is an integer number (1257732).

Almost surely, 2^12421474 is an apocalyptic number.

12421474 is a deficient number, since it is larger than the sum of its proper divisors (7702238).

12421474 is a wasteful number, since it uses less digits than its factorization.

12421474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401.

The product of its digits is 1792, while the sum is 25.

The square root of 12421474 is about 3524.4111564913. The cubic root of 12421474 is about 231.5924399182.

Adding to 12421474 its reverse (47412421), we get a palindrome (59833895).

The spelling of 12421474 in words is "twelve million, four hundred twenty-one thousand, four hundred seventy-four".