1816082242 has 8 divisors (see below), whose sum is σ = 2933671356. Its totient is φ = 838191792.

The previous prime is 1816082237. The next prime is 1816082287. The reversal of 1816082242 is 2422806181.

It can be written as a sum of positive squares in 2 ways, for example, as 1755693801 + 60388441 = 41901^2 + 7771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1816082198 and 1816082207.

It is an unprimeable number.

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, 34924633 + ... + 34924684.

Almost surely, 2^1816082242 is an apocalyptic number.

1816082242 is a deficient number, since it is larger than the sum of its proper divisors (1117589114).

1816082242 is a wasteful number, since it uses less digits than its factorization.

1816082242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69849332.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 1816082242 is about 42615.5164464776. The cubic root of 1816082242 is about 1220.0524572087.

The spelling of 1816082242 in words is "one billion, eight hundred sixteen million, eighty-two thousand, two hundred forty-two".