3885431620 has 48 divisors (see below), whose sum is σ = 9417397248. Its totient is φ = 1318953600.

The previous prime is 3885431597. The next prime is 3885431621. The reversal of 3885431620 is 261345883.

It is not an unprimeable number, because it can be changed into a prime (3885431621) 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 15 ways as a sum of consecutive naturals, for example, 123252 + ... + 151531.

It is an arithmetic number, because the mean of its divisors is an integer number (196195776).

Almost surely, 2^3885431620 is an apocalyptic number.

It is an amenable number.

3885431620 is an abundant number, since it is smaller than the sum of its proper divisors (5531965628).

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

3885431620 is a wasteful number, since it uses less digits than its factorization.

3885431620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274900 (or 274898 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 3885431620 is about 62333.2304633732. The cubic root of 3885431620 is about 1572.0985123233.

The spelling of 3885431620 in words is "three billion, eight hundred eighty-five million, four hundred thirty-one thousand, six hundred twenty".