3940305888486 has 64 divisors (see below), whose sum is σ = 8674509127680. Its totient is φ = 1183292480160.

The previous prime is 3940305888481. The next prime is 3940305888517. The reversal of 3940305888486 is 6848885030493.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940305888481) 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, 7169845 + ... + 7699823.

It is an arithmetic number, because the mean of its divisors is an integer number (135539205120).

Almost surely, 2^{3940305888486} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3940305888486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4337254563840).

3940305888486 is an abundant number, since it is smaller than the sum of its proper divisors (4734203239194).

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

3940305888486 is a wasteful number, since it uses less digits than its factorization.

3940305888486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531009.

The product of its (nonzero) digits is 159252480, while the sum is 66.

The spelling of 3940305888486 in words is "three trillion, nine hundred forty billion, three hundred five million, eight hundred eighty-eight thousand, four hundred eighty-six".