12443620 has 24 divisors (see below), whose sum is σ = 29865024. Its totient is φ = 4266336.

The previous prime is 12443611. The next prime is 12443633. The reversal of 12443620 is 2634421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12443591 and 12443600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44302 + ... + 44581.

It is an arithmetic number, because the mean of its divisors is an integer number (1244376).

Almost surely, 2^12443620 is an apocalyptic number.

12443620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12443620 is an abundant number, since it is smaller than the sum of its proper divisors (17421404).

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

12443620 is a wasteful number, since it uses less digits than its factorization.

12443620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88899 (or 88897 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 12443620 is about 3527.5515588011. The cubic root of 12443620 is about 231.7299920624.

The spelling of 12443620 in words is "twelve million, four hundred forty-three thousand, six hundred twenty".