2142444138 has 16 divisors (see below), whose sum is σ = 4285490976. Its totient is φ = 714047600.

The previous prime is 2142444121. The next prime is 2142444163. The reversal of 2142444138 is 8314442412.

It is a junction number, because it is equal to n+sod(n) for n = 2142444099 and 2142444108.

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 7 ways as a sum of consecutive naturals, for example, 30613 + ... + 72263.

It is an arithmetic number, because the mean of its divisors is an integer number (267843186).

Almost surely, 2^2142444138 is an apocalyptic number.

2142444138 is an abundant number, since it is smaller than the sum of its proper divisors (2143046838).

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

2142444138 is a wasteful number, since it uses less digits than its factorization.

2142444138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50229.

The product of its digits is 24576, while the sum is 33.

The square root of 2142444138 is about 46286.5438113498. The cubic root of 2142444138 is about 1289.1491571005.

The spelling of 2142444138 in words is "two billion, one hundred forty-two million, four hundred forty-four thousand, one hundred thirty-eight".