40538140444 has 12 divisors (see below), whose sum is σ = 71004589600. Its totient is φ = 20251114848.

The previous prime is 40538140411. The next prime is 40538140457. The reversal of 40538140444 is 44404183504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4483764 + ... + 4492795.

Almost surely, 2^40538140444 is an apocalyptic number.

It is an amenable number.

40538140444 is a deficient number, since it is larger than the sum of its proper divisors (30466449156).

40538140444 is a wasteful number, since it uses less digits than its factorization.

40538140444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8977692 (or 8977690 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 37.

The spelling of 40538140444 in words is "forty billion, five hundred thirty-eight million, one hundred forty thousand, four hundred forty-four".