42440217560 has 64 divisors (see below), whose sum is σ = 102961303200. Its totient is φ = 15651127296.

The previous prime is 42440217551. The next prime is 42440217581. The reversal of 42440217560 is 6571204424.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42440217560.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380696 + ... + 479384.

Almost surely, 2^42440217560 is an apocalyptic number.

42440217560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42440217560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51480651600).

42440217560 is an abundant number, since it is smaller than the sum of its proper divisors (60521085640).

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

42440217560 is a wasteful number, since it uses less digits than its factorization.

42440217560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99540 (or 99536 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The spelling of 42440217560 in words is "forty-two billion, four hundred forty million, two hundred seventeen thousand, five hundred sixty".