3988238680 has 16 divisors (see below), whose sum is σ = 8973537120. Its totient is φ = 1595295456.

The previous prime is 3988238651. The next prime is 3988238689. The reversal of 3988238680 is 868328893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3988238689) 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 3 ways as a sum of consecutive naturals, for example, 49852944 + ... + 49853023.

It is an arithmetic number, because the mean of its divisors is an integer number (560846070).

Almost surely, 2^3988238680 is an apocalyptic number.

It is an amenable number.

3988238680 is an abundant number, since it is smaller than the sum of its proper divisors (4985298440).

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

3988238680 is a wasteful number, since it uses less digits than its factorization.

3988238680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99705978 (or 99705974 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 55.

The square root of 3988238680 is about 63152.5033549740. The cubic root of 3988238680 is about 1585.8436969451.

The spelling of 3988238680 in words is "three billion, nine hundred eighty-eight million, two hundred thirty-eight thousand, six hundred eighty".