3938738832 has 80 divisors (see below), whose sum is σ = 12920740480. Its totient is φ = 1125353088.

The previous prime is 3938738827. The next prime is 3938738833. The reversal of 3938738832 is 2388378393.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (3938738833) 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 15 ways as a sum of consecutive naturals, for example, 648223 + ... + 654270.

It is an arithmetic number, because the mean of its divisors is an integer number (161509256).

Almost surely, 2^3938738832 is an apocalyptic number.

It is an amenable number.

3938738832 is an abundant number, since it is smaller than the sum of its proper divisors (8982001648).

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

3938738832 is a wasteful number, since it uses less digits than its factorization.

3938738832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302517 (or 1302505 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 3938738832 is about 62759.3724634018. The cubic root of 3938738832 is about 1579.2554885760.

The spelling of 3938738832 in words is "three billion, nine hundred thirty-eight million, seven hundred thirty-eight thousand, eight hundred thirty-two".