10443440 has 80 divisors (see below), whose sum is σ = 29408832. Its totient is φ = 3366912.

The previous prime is 10443439. The next prime is 10443443. The reversal of 10443440 is 4434401.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is not an unprimeable number, because it can be changed into a prime (10443443) 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 15 ways as a sum of consecutive naturals, for example, 8972 + ... + 10068.

Almost surely, 2^10443440 is an apocalyptic number.

10443440 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 10443440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14704416).

10443440 is an abundant number, since it is smaller than the sum of its proper divisors (18965392).

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

10443440 is a wasteful number, since it uses less digits than its factorization.

10443440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134 (or 1128 counting only the distinct ones).

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

The square root of 10443440 is about 3231.6311670734. The cubic root of 10443440 is about 218.5820653951.

Adding to 10443440 its reverse (4434401), we get a palindrome (14877841).

The spelling of 10443440 in words is "ten million, four hundred forty-three thousand, four hundred forty".