12443860 has 96 divisors (see below), whose sum is σ = 32457600. Its totient is φ = 3939840.

The previous prime is 12443833. The next prime is 12443863. The reversal of 12443860 is 6834421.

12443860 = 598² + 599² + ... + 630².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54226 + ... + 54454.

It is an arithmetic number, because the mean of its divisors is an integer number (338100).

Almost surely, 2^12443860 is an apocalyptic number.

12443860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12443860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16228800).

12443860 is an abundant number, since it is smaller than the sum of its proper divisors (20013740).

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

12443860 is a wasteful number, since it uses less digits than its factorization.

12443860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 12443860 is about 3527.5855765665. The cubic root of 12443860 is about 231.7314818443.

The spelling of 12443860 in words is "twelve million, four hundred forty-three thousand, eight hundred sixty".