40042044040424 has 8 divisors (see below), whose sum is σ = 75078832575810. Its totient is φ = 20021022020208.

The previous prime is 40042044040417. The next prime is 40042044040441. The reversal of 40042044040424 is 42404044024004.

It can be written as a sum of positive squares in only one way, i.e., 39306254080900 + 735789959524 = 6269470^2 + 857782^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2502627752519 + ... + 2502627752534.

Almost surely, 2^{40042044040424} is an apocalyptic number.

It is an amenable number.

40042044040424 is a deficient number, since it is larger than the sum of its proper divisors (35036788535386).

40042044040424 is a wasteful number, since it uses less digits than its factorization.

40042044040424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005255505059 (or 5005255505055 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 40042044040424 its reverse (42404044024004), we get a palindrome (82446088064428).

The spelling of 40042044040424 in words is "forty trillion, forty-two billion, forty-four million, forty thousand, four hundred twenty-four".