40440864824 has 8 divisors (see below), whose sum is σ = 75826621560. Its totient is φ = 20220432408.

The previous prime is 40440864809. The next prime is 40440864859. The reversal of 40440864824 is 42846804404.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527554044 + ... + 2527554059.

It is an arithmetic number, because the mean of its divisors is an integer number (9478327695).

Almost surely, 2^40440864824 is an apocalyptic number.

It is an amenable number.

40440864824 is a deficient number, since it is larger than the sum of its proper divisors (35385756736).

40440864824 is a wasteful number, since it uses less digits than its factorization.

40440864824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055108109 (or 5055108105 counting only the distinct ones).

The product of its (nonzero) digits is 786432, while the sum is 44.

The spelling of 40440864824 in words is "forty billion, four hundred forty million, eight hundred sixty-four thousand, eight hundred twenty-four".