3958542242 has 18 divisors (see below), whose sum is σ = 6310053747. Its totient is φ = 1862131584.

The previous prime is 3958542239. The next prime is 3958542271. The reversal of 3958542242 is 2422458593.

It can be written as a sum of positive squares in 5 ways, for example, as 3882660721 + 75881521 = 62311^2 + 8711^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=44489.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3958542193 and 3958542202.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 1511318 + ... + 1513934.

Almost surely, 2^3958542242 is an apocalyptic number.

3958542242 is a deficient number, since it is larger than the sum of its proper divisors (2351511505).

3958542242 is an frugal number, since it uses more digits than its factorization.

3958542242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5270 (or 2636 counting only the distinct ones).

The product of its digits is 691200, while the sum is 44.

The square root of 3958542242 is about 62916.9471764166. The cubic root of 3958542242 is about 1581.8978212607.

The spelling of 3958542242 in words is "three billion, nine hundred fifty-eight million, five hundred forty-two thousand, two hundred forty-two".