40044224864 has 48 divisors (see below), whose sum is σ = 90114052896. Its totient is φ = 17159040000.

The previous prime is 40044224837. The next prime is 40044224881. The reversal of 40044224864 is 46842244004.

It is a happy number.

It is a congruent number.

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, 2006294 + ... + 2026154.

It is an arithmetic number, because the mean of its divisors is an integer number (1877376102).

Almost surely, 2^40044224864 is an apocalyptic number.

It is an amenable number.

40044224864 is an abundant number, since it is smaller than the sum of its proper divisors (50069828032).

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

40044224864 is a wasteful number, since it uses less digits than its factorization.

40044224864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28879 (or 28871 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 38.

Adding to 40044224864 its reverse (46842244004), we get a palindrome (86886468868).

The spelling of 40044224864 in words is "forty billion, forty-four million, two hundred twenty-four thousand, eight hundred sixty-four".