3138922842 has 16 divisors (see below), whose sum is σ = 6848559072. Its totient is φ = 951188720.

The previous prime is 3138922757. The next prime is 3138922847. The reversal of 3138922842 is 2482298313.

It is a junction number, because it is equal to n+sod(n) for n = 3138922794 and 3138922803.

It is not an unprimeable number, because it can be changed into a prime (3138922847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23779653 + ... + 23779784.

It is an arithmetic number, because the mean of its divisors is an integer number (428034942).

Almost surely, 2^3138922842 is an apocalyptic number.

3138922842 is an abundant number, since it is smaller than the sum of its proper divisors (3709636230).

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

3138922842 is a wasteful number, since it uses less digits than its factorization.

3138922842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47559453.

The product of its digits is 165888, while the sum is 42.

The square root of 3138922842 is about 56026.0907256610. The cubic root of 3138922842 is about 1464.1768865296.

The spelling of 3138922842 in words is "three billion, one hundred thirty-eight million, nine hundred twenty-two thousand, eight hundred forty-two".