10443143540 has 24 divisors (see below), whose sum is σ = 21946772232. Its totient is φ = 4174177280.

The previous prime is 10443143519. The next prime is 10443143549. The reversal of 10443143540 is 4534134401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 121396324 + 10321747216 = 11018^2 + 101596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10443143549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164609 + ... + 219048.

It is an arithmetic number, because the mean of its divisors is an integer number (914448843).

Almost surely, 2^10443143540 is an apocalyptic number.

10443143540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10443143540 is an abundant number, since it is smaller than the sum of its proper divisors (11503628692).

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

10443143540 is a wasteful number, since it uses less digits than its factorization.

10443143540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385027 (or 385025 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 10443143540 its reverse (4534134401), we get a palindrome (14977277941).

The spelling of 10443143540 in words is "ten billion, four hundred forty-three million, one hundred forty-three thousand, five hundred forty".