2130342442 has 4 divisors (see below), whose sum is σ = 3195513666. Its totient is φ = 1065171220.

The previous prime is 2130342397. The next prime is 2130342443. The reversal of 2130342442 is 2442430312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2128807321 + 1535121 = 46139^2 + 1239^2 .

It is not an unprimeable number, because it can be changed into a prime (2130342443) 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 as a sum of consecutive naturals, namely, 532585609 + ... + 532585612.

Almost surely, 2^2130342442 is an apocalyptic number.

2130342442 is a deficient number, since it is larger than the sum of its proper divisors (1065171224).

2130342442 is a wasteful number, since it uses less digits than its factorization.

2130342442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065171223.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2130342442 is about 46155.6328306741. The cubic root of 2130342442 is about 1286.7172993966.

Adding to 2130342442 its reverse (2442430312), we get a palindrome (4572772754).

The spelling of 2130342442 in words is "two billion, one hundred thirty million, three hundred forty-two thousand, four hundred forty-two".