3938900231 has 12 divisors (see below), whose sum is σ = 4705825608. Its totient is φ = 3284950032.

The previous prime is 3938900227. The next prime is 3938900237. The reversal of 3938900231 is 1320098393.

It is not a de Polignac number, because 3938900231 - 2² = 3938900227 is a prime.

It is a super-3 number, since 3×3938900231³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938900237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1084481 + ... + 1088106.

It is an arithmetic number, because the mean of its divisors is an integer number (392152134).

Almost surely, 2^3938900231 is an apocalyptic number.

3938900231 is a deficient number, since it is larger than the sum of its proper divisors (766925377).

3938900231 is a wasteful number, since it uses less digits than its factorization.

3938900231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172638 (or 2172631 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 3938900231 is about 62760.6583059802. The cubic root of 3938900231 is about 1579.2770595057.

The spelling of 3938900231 in words is "three billion, nine hundred thirty-eight million, nine hundred thousand, two hundred thirty-one".