3122665842 has 32 divisors (see below), whose sum is σ = 6617407104. Its totient is φ = 978963200.

The previous prime is 3122665841. The next prime is 3122665849. The reversal of 3122665842 is 2485662213.

It is a self number, because there is not a number n which added to its sum of digits gives 3122665842.

It is not an unprimeable number, because it can be changed into a prime (3122665841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143992 + ... + 164252.

It is an arithmetic number, because the mean of its divisors is an integer number (206793972).

Almost surely, 2^3122665842 is an apocalyptic number.

3122665842 is an abundant number, since it is smaller than the sum of its proper divisors (3494741262).

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

3122665842 is a wasteful number, since it uses less digits than its factorization.

3122665842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21794.

The product of its digits is 138240, while the sum is 39.

The square root of 3122665842 is about 55880.8181937237. The cubic root of 3122665842 is about 1461.6447720719.

The spelling of 3122665842 in words is "three billion, one hundred twenty-two million, six hundred sixty-five thousand, eight hundred forty-two".