40255488020 has 96 divisors (see below), whose sum is σ = 94763281536. Its totient is φ = 14237798400.

The previous prime is 40255488001. The next prime is 40255488047. The reversal of 40255488020 is 2088455204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2271032 + ... + 2288688.

It is an arithmetic number, because the mean of its divisors is an integer number (987117516).

Almost surely, 2^40255488020 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 40255488020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47381640768).

40255488020 is an abundant number, since it is smaller than the sum of its proper divisors (54507793516).

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

40255488020 is a wasteful number, since it uses less digits than its factorization.

40255488020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17961 (or 17959 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 38.

The spelling of 40255488020 in words is "forty billion, two hundred fifty-five million, four hundred eighty-eight thousand, twenty".