10243440531540 has 36 divisors (see below), whose sum is σ = 31071769612884. Its totient is φ = 2731584141696.

The previous prime is 10243440531517. The next prime is 10243440531547. The reversal of 10243440531540 is 4513504434201.

10243440531540 is a `hidden beast` number, since 1 + 0 + 2 + 4 + 34 + 40 + 531 + 54 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3439919508804 + 6803521022736 = 1854702^2 + 2608356^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×10243440531540³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 10243440531495 and 10243440531504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10243440531547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28454001297 + ... + 28454001656.

It is an arithmetic number, because the mean of its divisors is an integer number (863104711469).

Almost surely, 2^{10243440531540} is an apocalyptic number.

10243440531540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10243440531540 is an abundant number, since it is smaller than the sum of its proper divisors (20828329081344).

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

10243440531540 is a wasteful number, since it uses less digits than its factorization.

10243440531540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56908002968 (or 56908002963 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 10243440531540 its reverse (4513504434201), we get a palindrome (14756944965741).

The spelling of 10243440531540 in words is "ten trillion, two hundred forty-three billion, four hundred forty million, five hundred thirty-one thousand, five hundred forty".