10543442440 has 32 divisors (see below), whose sum is σ = 23738258880. Its totient is φ = 4214619072.

The previous prime is 10543442407. The next prime is 10543442447. The reversal of 10543442440 is 4424434501.

It is a super-2 number, since 2×10543442440² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10543442447) 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, 23694 + ... + 147133.

It is an arithmetic number, because the mean of its divisors is an integer number (741820590).

Almost surely, 2^10543442440 is an apocalyptic number.

10543442440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10543442440 is an abundant number, since it is smaller than the sum of its proper divisors (13194816440).

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

10543442440 is a wasteful number, since it uses less digits than its factorization.

10543442440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172381 (or 172377 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 10543442440 its reverse (4424434501), we get a palindrome (14967876941).

It can be divided in two parts, 1054344 and 2440, that added together give a square (1056784 = 1028²).

The spelling of 10543442440 in words is "ten billion, five hundred forty-three million, four hundred forty-two thousand, four hundred forty".