3138342042 has 128 divisors (see below), whose sum is σ = 7388651520. Its totient is φ = 879215040.

The previous prime is 3138342041. The next prime is 3138342047. The reversal of 3138342042 is 2402438313.

It is not an unprimeable number, because it can be changed into a prime (3138342041) 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 63 ways as a sum of consecutive naturals, for example, 6000393 + ... + 6000915.

It is an arithmetic number, because the mean of its divisors is an integer number (57723840).

Almost surely, 2^3138342042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3138342042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3694325760).

3138342042 is an abundant number, since it is smaller than the sum of its proper divisors (4250309478).

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

3138342042 is a wasteful number, since it uses less digits than its factorization.

3138342042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 3138342042 is about 56020.9071865139. The cubic root of 3138342042 is about 1464.0865746154.

The spelling of 3138342042 in words is "three billion, one hundred thirty-eight million, three hundred forty-two thousand, forty-two".