18068522 has 8 divisors (see below), whose sum is σ = 27474276. Its totient is φ = 8910432.

The previous prime is 18068521. The next prime is 18068527. The reversal of 18068522 is 22586081.

It can be written as a sum of positive squares in 2 ways, for example, as 17631601 + 436921 = 4199^2 + 661^2 .

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

It is not an unprimeable number, because it can be changed into a prime (18068521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61733 + ... + 62024.

Almost surely, 2^18068522 is an apocalyptic number.

18068522 is a deficient number, since it is larger than the sum of its proper divisors (9405754).

18068522 is a wasteful number, since it uses less digits than its factorization.

18068522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123832.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 18068522 is about 4250.7084115474. The cubic root of 18068522 is about 262.4062709964.

The spelling of 18068522 in words is "eighteen million, sixty-eight thousand, five hundred twenty-two".