2142030444 has 12 divisors (see below), whose sum is σ = 4998071064. Its totient is φ = 714010144.

The previous prime is 2142030439. The next prime is 2142030461. The reversal of 2142030444 is 4440302412.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 89251257 + ... + 89251280.

It is an arithmetic number, because the mean of its divisors is an integer number (416505922).

Almost surely, 2^2142030444 is an apocalyptic number.

It is an amenable number.

2142030444 is an abundant number, since it is smaller than the sum of its proper divisors (2856040620).

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

2142030444 is a wasteful number, since it uses less digits than its factorization.

2142030444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178502544 (or 178502542 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 2142030444 is about 46282.0747590252. The cubic root of 2142030444 is about 1289.0661759246.

Adding to 2142030444 its reverse (4440302412), we get a palindrome (6582332856).

The spelling of 2142030444 in words is "two billion, one hundred forty-two million, thirty thousand, four hundred forty-four".