440840428056 has 48 divisors (see below), whose sum is σ = 1364506088400. Its totient is φ = 125954407872.

The previous prime is 440840428051. The next prime is 440840428109. The reversal of 440840428056 is 650824048044.

440840428056 is a `hidden beast` number, since 440 + 8 + 40 + 42 + 80 + 56 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440840428051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 437341191 + ... + 437342198.

It is an arithmetic number, because the mean of its divisors is an integer number (28427210175).

Almost surely, 2^440840428056 is an apocalyptic number.

It is an amenable number.

440840428056 is an abundant number, since it is smaller than the sum of its proper divisors (923665660344).

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

440840428056 is a wasteful number, since it uses less digits than its factorization.

440840428056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874683408 (or 874683401 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 45.

The spelling of 440840428056 in words is "four hundred forty billion, eight hundred forty million, four hundred twenty-eight thousand, fifty-six".