40243555344 has 20 divisors (see below), whose sum is σ = 103962518096. Its totient is φ = 13414518432.

The previous prime is 40243555333. The next prime is 40243555349. The reversal of 40243555344 is 44355534204.

40243555344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40243555349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419203654 + ... + 419203749.

Almost surely, 2^40243555344 is an apocalyptic number.

It is an amenable number.

40243555344 is an abundant number, since it is smaller than the sum of its proper divisors (63718962752).

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

40243555344 is a wasteful number, since it uses less digits than its factorization.

40243555344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838407414 (or 838407408 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 39.

The spelling of 40243555344 in words is "forty billion, two hundred forty-three million, five hundred fifty-five thousand, three hundred forty-four".