40000040844 has 24 divisors (see below), whose sum is σ = 95503974720. Its totient is φ = 13023268944.

The previous prime is 40000040827. The next prime is 40000040863. The reversal of 40000040844 is 44804000004.

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, 38759214 + ... + 38760245.

It is an arithmetic number, because the mean of its divisors is an integer number (3979332280).

Almost surely, 2^40000040844 is an apocalyptic number.

It is an amenable number.

40000040844 is an abundant number, since it is smaller than the sum of its proper divisors (55503933876).

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

40000040844 is a wasteful number, since it uses less digits than its factorization.

40000040844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77519509 (or 77519507 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 40000040844 its reverse (44804000004), we get a palindrome (84804040848).

The spelling of 40000040844 in words is "forty billion, forty thousand, eight hundred forty-four".