2142254344 has 8 divisors (see below), whose sum is σ = 4016726910. Its totient is φ = 1071127168.

The previous prime is 2142254327. The next prime is 2142254347. The reversal of 2142254344 is 4434522412.

It can be written as a sum of positive squares in only one way, i.e., 1456338244 + 685916100 = 38162^2 + 26190^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2142254347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133890889 + ... + 133890904.

Almost surely, 2^2142254344 is an apocalyptic number.

It is an amenable number.

2142254344 is a deficient number, since it is larger than the sum of its proper divisors (1874472566).

2142254344 is a wasteful number, since it uses less digits than its factorization.

2142254344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267781799 (or 267781795 counting only the distinct ones).

The product of its digits is 30720, while the sum is 31.

The square root of 2142254344 is about 46284.4935588583. The cubic root of 2142254344 is about 1289.1110884299. Note that the first 3 decimals are identical.

Adding to 2142254344 its reverse (4434522412), we get a palindrome (6576776756).

The spelling of 2142254344 in words is "two billion, one hundred forty-two million, two hundred fifty-four thousand, three hundred forty-four".