12424340 has 12 divisors (see below), whose sum is σ = 26091156. Its totient is φ = 4969728.

The previous prime is 12424337. The next prime is 12424343. The reversal of 12424340 is 4342421.

12424340 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 (12424337) and next prime (12424343).

It can be written as a sum of positive squares in 2 ways, for example, as 8844676 + 3579664 = 2974^2 + 1892^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 621217 = 12424340 / (1 + 2 + 4 + 2 + 4 + 3 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12424343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310589 + ... + 310628.

It is an arithmetic number, because the mean of its divisors is an integer number (2174263).

Almost surely, 2^12424340 is an apocalyptic number.

12424340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12424340 is an abundant number, since it is smaller than the sum of its proper divisors (13666816).

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

12424340 is a wasteful number, since it uses less digits than its factorization.

12424340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621226 (or 621224 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 12424340 is about 3524.8177257838. The cubic root of 12424340 is about 231.6102502814.

Adding to 12424340 its reverse (4342421), we get a palindrome (16766761).

The spelling of 12424340 in words is "twelve million, four hundred twenty-four thousand, three hundred forty".