2142340028 has 12 divisors (see below), whose sum is σ = 3749499600. Its totient is φ = 1071054432.

The previous prime is 2142340027. The next prime is 2142340043. The reversal of 2142340028 is 8200432412.

It is a junction number, because it is equal to n+sod(n) for n = 2142339979 and 2142340006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142340021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23273 + ... + 69471.

It is an arithmetic number, because the mean of its divisors is an integer number (312458300).

Almost surely, 2^2142340028 is an apocalyptic number.

It is an amenable number.

2142340028 is a deficient number, since it is larger than the sum of its proper divisors (1607159572).

2142340028 is a wasteful number, since it uses less digits than its factorization.

2142340028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57796 (or 57794 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 2142340028 is about 46285.4191727805. The cubic root of 2142340028 is about 1289.1282751102.

The spelling of 2142340028 in words is "two billion, one hundred forty-two million, three hundred forty thousand, twenty-eight".