40860421056 has 448 divisors, whose sum is σ = 150888192000. Its totient is φ = 10774342656.

The previous prime is 40860421037. The next prime is 40860421057. The reversal of 40860421056 is 65012406804.

40860421056 is a `hidden beast` number, since 40 + 8 + 604 + 2 + 1 + 0 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 40860421056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40860421057) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7702501 + ... + 7707803.

It is an arithmetic number, because the mean of its divisors is an integer number (336804000).

Almost surely, 2^40860421056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40860421056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75444096000).

40860421056 is an abundant number, since it is smaller than the sum of its proper divisors (110027770944).

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

40860421056 is a wasteful number, since it uses less digits than its factorization.

40860421056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5358 (or 5328 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 40860421056 in words is "forty billion, eight hundred sixty million, four hundred twenty-one thousand, fifty-six".