3940038102 has 128 divisors (see below), whose sum is σ = 10680864768. Its totient is φ = 935683200.

The previous prime is 3940038083. The next prime is 3940038103. The reversal of 3940038102 is 2018300493.

It is a self number, because there is not a number n which added to its sum of digits gives 3940038102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940038103) 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, 639577 + ... + 645707.

It is an arithmetic number, because the mean of its divisors is an integer number (83444256).

Almost surely, 2^3940038102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3940038102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5340432384).

3940038102 is an abundant number, since it is smaller than the sum of its proper divisors (6740826666).

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

3940038102 is a wasteful number, since it uses less digits than its factorization.

3940038102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6274.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 3940038102 is about 62769.7228128339. The cubic root of 3940038102 is about 1579.4291189173.

Adding to 3940038102 its reverse (2018300493), we get a palindrome (5958338595).

The spelling of 3940038102 in words is "three billion, nine hundred forty million, thirty-eight thousand, one hundred two".