3898919808 has 432 divisors, whose sum is σ = 13922204400. Its totient is φ = 1044062208.

The previous prime is 3898919797. The next prime is 3898919809. The reversal of 3898919808 is 8089198983.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898919809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 16313353 + ... + 16313591.

It is an arithmetic number, because the mean of its divisors is an integer number (32227325).

Almost surely, 2^3898919808 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 3898919808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6961102200).

3898919808 is an abundant number, since it is smaller than the sum of its proper divisors (10023284592).

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

3898919808 is a wasteful number, since it uses less digits than its factorization.

3898919808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 63.

The square root of 3898919808 is about 62441.3309275195. The cubic root of 3898919808 is about 1573.9155794510.

The spelling of 3898919808 in words is "three billion, eight hundred ninety-eight million, nine hundred nineteen thousand, eight hundred eight".