43423440240 has 40 divisors (see below), whose sum is σ = 134612665488. Its totient is φ = 11579584000.

The previous prime is 43423440223. The next prime is 43423440251. The reversal of 43423440240 is 4204432434.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 43423440198 and 43423440207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90465261 + ... + 90465740.

Almost surely, 2^43423440240 is an apocalyptic number.

43423440240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43423440240 is an abundant number, since it is smaller than the sum of its proper divisors (91189225248).

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

43423440240 is a wasteful number, since it uses less digits than its factorization.

43423440240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180931017 (or 180931011 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 43423440240 its reverse (4204432434), we get a palindrome (47627872674).

It can be divided in two parts, 434234 and 40240, that added together give a palindrome (474474).

The spelling of 43423440240 in words is "forty-three billion, four hundred twenty-three million, four hundred forty thousand, two hundred forty".