220530705 has 8 divisors (see below), whose sum is σ = 352849152. Its totient is φ = 117616368.

The previous prime is 220530689. The next prime is 220530733. The reversal of 220530705 is 507035022.

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

It is not a de Polignac number, because 220530705 - 2⁴ = 220530689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7351009 + ... + 7351038.

It is an arithmetic number, because the mean of its divisors is an integer number (44106144).

Almost surely, 2^220530705 is an apocalyptic number.

It is an amenable number.

220530705 is a deficient number, since it is larger than the sum of its proper divisors (132318447).

220530705 is a wasteful number, since it uses less digits than its factorization.

220530705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14702055.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 220530705 is about 14850.2762600566. The cubic root of 220530705 is about 604.1661029140.

Adding to 220530705 its reverse (507035022), we get a palindrome (727565727).

The spelling of 220530705 in words is "two hundred twenty million, five hundred thirty thousand, seven hundred five".