3988043604 has 72 divisors (see below), whose sum is σ = 10340770440. Its totient is φ = 1295481600.

The previous prime is 3988043603. The next prime is 3988043767. The reversal of 3988043604 is 4063408893.

3988043604 is a `hidden beast` number, since 39 + 8 + 8 + 0 + 4 + 3 + 604 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 137592900 + 3850450704 = 11730^2 + 62052^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3988043604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3988043603) 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 23 ways as a sum of consecutive naturals, for example, 231034 + ... + 247694.

Almost surely, 2^3988043604 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 3988043604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5170385220).

3988043604 is an abundant number, since it is smaller than the sum of its proper divisors (6352726836).

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

3988043604 is a wasteful number, since it uses less digits than its factorization.

3988043604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16841 (or 16836 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 3988043604 is about 63150.9588525780. The cubic root of 3988043604 is about 1585.8178404945.

The spelling of 3988043604 in words is "three billion, nine hundred eighty-eight million, forty-three thousand, six hundred four".