43423002040 has 128 divisors (see below), whose sum is σ = 112295289600. Its totient is φ = 14945541120.

The previous prime is 43423002001. The next prime is 43423002047. The reversal of 43423002040 is 4020032434.

43423002040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43423002047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14653599 + ... + 14656561.

It is an arithmetic number, because the mean of its divisors is an integer number (877306950).

Almost surely, 2^43423002040 is an apocalyptic number.

43423002040 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 43423002040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56147644800).

43423002040 is an abundant number, since it is smaller than the sum of its proper divisors (68872287560).

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

43423002040 is a wasteful number, since it uses less digits than its factorization.

43423002040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757 (or 4753 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 43423002040 its reverse (4020032434), we get a palindrome (47443034474).

The spelling of 43423002040 in words is "forty-three billion, four hundred twenty-three million, two thousand, forty".