10443420 has 72 divisors (see below), whose sum is σ = 34122816. Its totient is φ = 2570112.

The previous prime is 10443401. The next prime is 10443421. The reversal of 10443420 is 2434401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10443393 and 10443402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10443421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109 + ... + 4571.

It is an arithmetic number, because the mean of its divisors is an integer number (473928).

Almost surely, 2^10443420 is an apocalyptic number.

10443420 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 10443420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17061408).

10443420 is an abundant number, since it is smaller than the sum of its proper divisors (23679396).

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

10443420 is a wasteful number, since it uses less digits than its factorization.

10443420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4491 (or 4486 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 10443420 is about 3231.6280726594. The cubic root of 10443420 is about 218.5819258612.

Adding to 10443420 its reverse (2434401), we get a palindrome (12877821).

The spelling of 10443420 in words is "ten million, four hundred forty-three thousand, four hundred twenty".