12421460 has 24 divisors (see below), whose sum is σ = 26248320. Its totient is φ = 4937504.

The previous prime is 12421439. The next prime is 12421481. The reversal of 12421460 is 6412421.

12421460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12421439) and next prime (12421481).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 1481 + ... + 5199.

It is an arithmetic number, because the mean of its divisors is an integer number (1093680).

Almost surely, 2^12421460 is an apocalyptic number.

12421460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12421460 is an abundant number, since it is smaller than the sum of its proper divisors (13826860).

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

12421460 is a wasteful number, since it uses less digits than its factorization.

12421460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3895 (or 3893 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 12421460 is about 3524.4091703433. The cubic root of 12421460 is about 231.5923529104.

Adding to 12421460 its reverse (6412421), we get a palindrome (18833881).

The spelling of 12421460 in words is "twelve million, four hundred twenty-one thousand, four hundred sixty".