20220530 has 16 divisors (see below), whose sum is σ = 39705984. Its totient is φ = 7352880.

The previous prime is 20220517. The next prime is 20220581. The reversal of 20220530 is 3502202.

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 7 ways as a sum of consecutive naturals, for example, 91802 + ... + 92021.

It is an arithmetic number, because the mean of its divisors is an integer number (2481624).

Almost surely, 2^20220530 is an apocalyptic number.

20220530 is a deficient number, since it is larger than the sum of its proper divisors (19485454).

20220530 is a wasteful number, since it uses less digits than its factorization.

20220530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183841.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 20220530 is about 4496.7243633561. The cubic root of 20220530 is about 272.4358011658.

Adding to 20220530 its reverse (3502202), we get a palindrome (23722732).

The spelling of 20220530 in words is "twenty million, two hundred twenty thousand, five hundred thirty".