40040044004 has 24 divisors (see below), whose sum is σ = 71417304000. Its totient is φ = 19636930080.

The previous prime is 40040043997. The next prime is 40040044043. The reversal of 40040044004 is 40044004004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140954 + ... + 316145.

It is an arithmetic number, because the mean of its divisors is an integer number (2975721000).

Almost surely, 2^40040044004 is an apocalyptic number.

It is an amenable number.

40040044004 is a deficient number, since it is larger than the sum of its proper divisors (31377259996).

40040044004 is a wasteful number, since it uses less digits than its factorization.

40040044004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457523 (or 457521 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40040044004 its reverse (40044004004), we get a palindrome (80084048008).

The spelling of 40040044004 in words is "forty billion, forty million, forty-four thousand, four", and thus it is an eban number.