12421452 has 24 divisors (see below), whose sum is σ = 29919232. Its totient is φ = 4006800.

The previous prime is 12421439. The next prime is 12421481. The reversal of 12421452 is 25412421.

12421452 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a plaindrome in base 15.

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, 16324 + ... + 17067.

Almost surely, 2^12421452 is an apocalyptic number.

12421452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12421452 is an abundant number, since it is smaller than the sum of its proper divisors (17497780).

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

12421452 is a wasteful number, since it uses less digits than its factorization.

12421452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33429 (or 33427 counting only the distinct ones).

The product of its digits is 640, while the sum is 21.

The square root of 12421452 is about 3524.4080354011. The cubic root of 12421452 is about 231.5923031916.

Adding to 12421452 its reverse (25412421), we get a palindrome (37833873).

The spelling of 12421452 in words is "twelve million, four hundred twenty-one thousand, four hundred fifty-two".