20330522 has 8 divisors (see below), whose sum is σ = 30518400. Its totient is φ = 10157724.

The previous prime is 20330509. The next prime is 20330539. The reversal of 20330522 is 22503302.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20330522.

It is an unprimeable number.

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, 629 + ... + 6407.

It is an arithmetic number, because the mean of its divisors is an integer number (3814800).

Almost surely, 2^20330522 is an apocalyptic number.

20330522 is a deficient number, since it is larger than the sum of its proper divisors (10187878).

20330522 is a wasteful number, since it uses less digits than its factorization.

20330522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7540.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 20330522 is about 4508.9380124371. The cubic root of 20330522 is about 272.9288905842.

Adding to 20330522 its reverse (22503302), we get a palindrome (42833824).

The spelling of 20330522 in words is "twenty million, three hundred thirty thousand, five hundred twenty-two".