43002334040 has 64 divisors (see below), whose sum is σ = 99400815360. Its totient is φ = 16733808000.

The previous prime is 43002334009. The next prime is 43002334057. The reversal of 43002334040 is 4043320034.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 43002333997 and 43002334015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381917 + ... + 481523.

It is an arithmetic number, because the mean of its divisors is an integer number (1553137740).

Almost surely, 2^43002334040 is an apocalyptic number.

43002334040 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 43002334040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49700407680).

43002334040 is an abundant number, since it is smaller than the sum of its proper divisors (56398481320).

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

43002334040 is a wasteful number, since it uses less digits than its factorization.

43002334040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99912 (or 99908 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 43002334040 its reverse (4043320034), we get a palindrome (47045654074).

The spelling of 43002334040 in words is "forty-three billion, two million, three hundred thirty-four thousand, forty".