2168450356 has 6 divisors (see below), whose sum is σ = 3794788130. Its totient is φ = 1084225176.

The previous prime is 2168450329. The next prime is 2168450359. The reversal of 2168450356 is 6530548612.

It can be written as a sum of positive squares in only one way, i.e., 2008832400 + 159617956 = 44820^2 + 12634^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168450359) 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 as a sum of consecutive naturals, namely, 271056291 + ... + 271056298.

Almost surely, 2^2168450356 is an apocalyptic number.

It is an amenable number.

2168450356 is a deficient number, since it is larger than the sum of its proper divisors (1626337774).

2168450356 is a wasteful number, since it uses less digits than its factorization.

2168450356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542112593 (or 542112591 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 2168450356 is about 46566.6227678151. The cubic root of 2168450356 is about 1294.3443371734.

Adding to 2168450356 its reverse (6530548612), we get a palindrome (8698998968).

The spelling of 2168450356 in words is "two billion, one hundred sixty-eight million, four hundred fifty thousand, three hundred fifty-six".