220002605 has 8 divisors (see below), whose sum is σ = 264211200. Its totient is φ = 175863376.

The previous prime is 220002589. The next prime is 220002611. The reversal of 220002605 is 506200022.

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

It is a cyclic number.

It is not a de Polignac number, because 220002605 - 2⁴ = 220002589 is a prime.

It is a super-2 number, since 2×220002605² = 96802292413572050, which contains 22 as substring.

It is a congruent number.

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, 10085 + ... + 23274.

It is an arithmetic number, because the mean of its divisors is an integer number (33026400).

Almost surely, 2^220002605 is an apocalyptic number.

It is an amenable number.

220002605 is a deficient number, since it is larger than the sum of its proper divisors (44208595).

220002605 is a wasteful number, since it uses less digits than its factorization.

220002605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34683.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 220002605 is about 14832.4847884635. The cubic root of 220002605 is about 603.6834563813.

Adding to 220002605 its reverse (506200022), we get a palindrome (726202627).

The spelling of 220002605 in words is "two hundred twenty million, two thousand, six hundred five".