43040723256 has 96 divisors (see below), whose sum is σ = 124783776000. Its totient is φ = 13361412672.

The previous prime is 43040723221. The next prime is 43040723281. The reversal of 43040723256 is 65232704034.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 43040723256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185920 + ... + 347343.

It is an arithmetic number, because the mean of its divisors is an integer number (1299831000).

Almost surely, 2^43040723256 is an apocalyptic number.

It is an amenable number.

43040723256 is an abundant number, since it is smaller than the sum of its proper divisors (81743052744).

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

43040723256 is a wasteful number, since it uses less digits than its factorization.

43040723256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533353 (or 533346 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 36.

The spelling of 43040723256 in words is "forty-three billion, forty million, seven hundred twenty-three thousand, two hundred fifty-six".