40208886620 has 96 divisors (see below), whose sum is σ = 97556659200. Its totient is φ = 13635477504.

The previous prime is 40208886607. The next prime is 40208886623. The reversal of 40208886620 is 2668880204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40208886623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20316791 + ... + 20318769.

It is an arithmetic number, because the mean of its divisors is an integer number (1016215200).

Almost surely, 2^40208886620 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 40208886620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48778329600).

40208886620 is an abundant number, since it is smaller than the sum of its proper divisors (57347772580).

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

40208886620 is a wasteful number, since it uses less digits than its factorization.

40208886620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507 (or 3505 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 44.

The spelling of 40208886620 in words is "forty billion, two hundred eight million, eight hundred eighty-six thousand, six hundred twenty".