2142636344 has 16 divisors (see below), whose sum is σ = 4253763600. Its totient is φ = 1008299392.

The previous prime is 2142636317. The next prime is 2142636347. The reversal of 2142636344 is 4436362412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142636347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7877204 + ... + 7877475.

It is an arithmetic number, because the mean of its divisors is an integer number (265860225).

Almost surely, 2^2142636344 is an apocalyptic number.

It is an amenable number.

2142636344 is a deficient number, since it is larger than the sum of its proper divisors (2111127256).

2142636344 is a wasteful number, since it uses less digits than its factorization.

2142636344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15754702 (or 15754698 counting only the distinct ones).

The product of its digits is 82944, while the sum is 35.

The square root of 2142636344 is about 46288.6200269569. The cubic root of 2142636344 is about 1289.1877072761.

Adding to 2142636344 its reverse (4436362412), we get a palindrome (6578998756).

The spelling of 2142636344 in words is "two billion, one hundred forty-two million, six hundred thirty-six thousand, three hundred forty-four".