3919938489 has 48 divisors (see below), whose sum is σ = 6233819200. Its totient is φ = 2433742848.

The previous prime is 3919938487. The next prime is 3919938511. The reversal of 3919938489 is 9848399193.

It is a happy number.

3919938489 is a `hidden beast` number, since 3 + 91 + 99 + 384 + 89 = 666.

It is not a de Polignac number, because 3919938489 - 2¹ = 3919938487 is a prime.

It is a super-4 number, since 4×3919938489⁴ (a number of 39 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3919938481) 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 47 ways as a sum of consecutive naturals, for example, 754302 + ... + 759480.

Almost surely, 2^3919938489 is an apocalyptic number.

It is an amenable number.

3919938489 is a deficient number, since it is larger than the sum of its proper divisors (2313880711).

3919938489 is a wasteful number, since it uses less digits than its factorization.

3919938489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5319 (or 5296 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 63.

The square root of 3919938489 is about 62609.4121438622. The cubic root of 3919938489 is about 1576.7387853597.

The spelling of 3919938489 in words is "three billion, nine hundred nineteen million, nine hundred thirty-eight thousand, four hundred eighty-nine".