43040245556 has 96 divisors (see below), whose sum is σ = 95650377984. Its totient is φ = 16458624000.

The previous prime is 43040245543. The next prime is 43040245561. The reversal of 43040245556 is 65554204034.

It is a congruent number.

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, 9786350 + ... + 9790746.

It is an arithmetic number, because the mean of its divisors is an integer number (996358104).

Almost surely, 2^43040245556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43040245556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47825188992).

43040245556 is an abundant number, since it is smaller than the sum of its proper divisors (52610132428).

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

43040245556 is a wasteful number, since it uses less digits than its factorization.

43040245556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001 (or 4999 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 38.

The spelling of 43040245556 in words is "forty-three billion, forty million, two hundred forty-five thousand, five hundred fifty-six".