40204202440056 has 128 divisors (see below), whose sum is σ = 103607150250240. Its totient is φ = 12992632243200.

The previous prime is 40204202440049. The next prime is 40204202440057. The reversal of 40204202440056 is 65004420240204.

It is a junction number, because it is equal to n+sod(n) for n = 40204202439999 and 40204202440026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40204202440057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1976500446 + ... + 1976520786.

It is an arithmetic number, because the mean of its divisors is an integer number (809430861330).

Almost surely, 2^{40204202440056} 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 40204202440056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51803575125120).

40204202440056 is an abundant number, since it is smaller than the sum of its proper divisors (63402947810184).

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

40204202440056 is a wasteful number, since it uses less digits than its factorization.

40204202440056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32877 (or 32873 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

The spelling of 40204202440056 in words is "forty trillion, two hundred four billion, two hundred two million, four hundred forty thousand, fifty-six".