2142072184 has 32 divisors (see below), whose sum is σ = 4591641600. Its totient is φ = 917733600.

The previous prime is 2142072139. The next prime is 2142072187. The reversal of 2142072184 is 4812702412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142072187) 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, 323709 + ... + 330259.

It is an arithmetic number, because the mean of its divisors is an integer number (143488800).

Almost surely, 2^2142072184 is an apocalyptic number.

It is an amenable number.

2142072184 is an abundant number, since it is smaller than the sum of its proper divisors (2449569416).

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

2142072184 is a wasteful number, since it uses less digits than its factorization.

2142072184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12403 (or 12399 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 2142072184 is about 46282.5256873477. The cubic root of 2142072184 is about 1289.0745488639.

Adding to 2142072184 its reverse (4812702412), we get a palindrome (6954774596).

The spelling of 2142072184 in words is "two billion, one hundred forty-two million, seventy-two thousand, one hundred eighty-four".