3808475728 has 40 divisors (see below), whose sum is σ = 7850122560. Its totient is φ = 1783703040.

The previous prime is 3808475689. The next prime is 3808475747. The reversal of 3808475728 is 8275748083.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24213 + ... + 90571.

It is an arithmetic number, because the mean of its divisors is an integer number (196253064).

Almost surely, 2^3808475728 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 3808475728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3925061280).

3808475728 is an abundant number, since it is smaller than the sum of its proper divisors (4041646832).

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

3808475728 is a wasteful number, since it uses less digits than its factorization.

3808475728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66595 (or 66589 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 52.

The square root of 3808475728 is about 61712.8489700484. The cubic root of 3808475728 is about 1561.6500905119.

The spelling of 3808475728 in words is "three billion, eight hundred eight million, four hundred seventy-five thousand, seven hundred twenty-eight".