40448040440 has 16 divisors (see below), whose sum is σ = 91008091080. Its totient is φ = 16179216160.

The previous prime is 40448040431. The next prime is 40448040463. The reversal of 40448040440 is 4404084404.

It is a junction number, because it is equal to n+sod(n) for n = 40448040397 and 40448040406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505600466 + ... + 505600545.

Almost surely, 2^40448040440 is an apocalyptic number.

40448040440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40448040440 is an abundant number, since it is smaller than the sum of its proper divisors (50560050640).

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

40448040440 is a wasteful number, since it uses less digits than its factorization.

40448040440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011201022 (or 1011201018 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

The spelling of 40448040440 in words is "forty billion, four hundred forty-eight million, forty thousand, four hundred forty".