40004887540 has 48 divisors (see below), whose sum is σ = 85840134912. Its totient is φ = 15653745536.

The previous prime is 40004887523. The next prime is 40004887567. The reversal of 40004887540 is 4578840004.

It is a junction number, because it is equal to n+sod(n) for n = 40004887493 and 40004887502.

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 15 ways as a sum of consecutive naturals, for example, 2121594 + ... + 2140366.

It is an arithmetic number, because the mean of its divisors is an integer number (1788336144).

Almost surely, 2^40004887540 is an apocalyptic number.

It is an amenable number.

40004887540 is an abundant number, since it is smaller than the sum of its proper divisors (45835247372).

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

40004887540 is a wasteful number, since it uses less digits than its factorization.

40004887540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21096 (or 21094 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 40.

The spelling of 40004887540 in words is "forty billion, four million, eight hundred eighty-seven thousand, five hundred forty".