43344656540 has 48 divisors (see below), whose sum is σ = 92868431040. Its totient is φ = 16988666880.

The previous prime is 43344656527. The next prime is 43344656549. The reversal of 43344656540 is 4565644334.

43344656540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 43344656491 and 43344656500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43344656549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253316 + ... + 388404.

It is an arithmetic number, because the mean of its divisors is an integer number (1934758980).

Almost surely, 2^43344656540 is an apocalyptic number.

It is an amenable number.

43344656540 is an abundant number, since it is smaller than the sum of its proper divisors (49523774500).

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

43344656540 is a wasteful number, since it uses less digits than its factorization.

43344656540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135422 (or 135420 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 44.

The spelling of 43344656540 in words is "forty-three billion, three hundred forty-four million, six hundred fifty-six thousand, five hundred forty".