40440404000440 has 16 divisors (see below), whose sum is σ = 90990909001080. Its totient is φ = 16176161600160.

The previous prime is 40440404000417. The next prime is 40440404000471. The reversal of 40440404000440 is 4400040404404.

It is a junction number, because it is equal to n+sod(n) for n = 40440404000399 and 40440404000408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505505049966 + ... + 505505050045.

Almost surely, 2^{40440404000440} is an apocalyptic number.

40440404000440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40440404000440 is an abundant number, since it is smaller than the sum of its proper divisors (50550505000640).

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

40440404000440 is a wasteful number, since it uses less digits than its factorization.

40440404000440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011010100022 (or 1011010100018 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 40440404000440 its reverse (4400040404404), we get a palindrome (44840444404844).

The spelling of 40440404000440 in words is "forty trillion, four hundred forty billion, four hundred four million, four hundred forty", and thus it is an aban number.