43140023520 has 288 divisors, whose sum is σ = 150387632640. Its totient is φ = 10386816000.

The previous prime is 43140023483. The next prime is 43140023533. The reversal of 43140023520 is 2532004134.

It is a super-2 number, since 2×43140023520² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 8767621 + ... + 8772539.

It is an arithmetic number, because the mean of its divisors is an integer number (522179280).

Almost surely, 2^43140023520 is an apocalyptic number.

43140023520 is a gapful number since it is divisible by the number (40) 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 43140023520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75193816320).

43140023520 is an abundant number, since it is smaller than the sum of its proper divisors (107247609120).

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

43140023520 is a wasteful number, since it uses less digits than its factorization.

43140023520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110 (or 5091 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 43140023520 its reverse (2532004134), we get a palindrome (45672027654).

The spelling of 43140023520 in words is "forty-three billion, one hundred forty million, twenty-three thousand, five hundred twenty".