40042423244 has 24 divisors (see below), whose sum is σ = 71593652928. Its totient is φ = 19587432960.

The previous prime is 40042423199. The next prime is 40042423279. The reversal of 40042423244 is 44232424004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446414 + ... + 528554.

It is an arithmetic number, because the mean of its divisors is an integer number (2983068872).

Almost surely, 2^40042423244 is an apocalyptic number.

It is an amenable number.

40042423244 is a deficient number, since it is larger than the sum of its proper divisors (31551229684).

40042423244 is a wasteful number, since it uses less digits than its factorization.

40042423244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84785 (or 84783 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 40042423244 its reverse (44232424004), we get a palindrome (84274847248).

The spelling of 40042423244 in words is "forty billion, forty-two million, four hundred twenty-three thousand, two hundred forty-four".