4243232400040 has 128 divisors (see below), whose sum is σ = 9813899243520. Its totient is φ = 1650525926400.

The previous prime is 4243232400019. The next prime is 4243232400073. The reversal of 4243232400040 is 400042323424.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4243232399981 and 4243232400008.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112143925 + ... + 112181755.

It is an arithmetic number, because the mean of its divisors is an integer number (76671087840).

Almost surely, 2^{4243232400040} is an apocalyptic number.

4243232400040 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 4243232400040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4906949621760).

4243232400040 is an abundant number, since it is smaller than the sum of its proper divisors (5570666843480).

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

4243232400040 is a wasteful number, since it uses less digits than its factorization.

4243232400040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38363 (or 38359 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 4243232400040 its reverse (400042323424), we get a palindrome (4643274723464).

The spelling of 4243232400040 in words is "four trillion, two hundred forty-three billion, two hundred thirty-two million, four hundred thousand, forty".