220299806 has 16 divisors (see below), whose sum is σ = 340402608. Its totient is φ = 106862400.

The previous prime is 220299803. The next prime is 220299809. The reversal of 220299806 is 608992022.

It is an interprime number because it is at equal distance from previous prime (220299803) and next prime (220299809).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 220299806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220299803) 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 7 ways as a sum of consecutive naturals, for example, 7421 + ... + 22263.

It is an arithmetic number, because the mean of its divisors is an integer number (21275163).

Almost surely, 2^220299806 is an apocalyptic number.

It is a pronic number, being equal to 14842×14843.

220299806 is a deficient number, since it is larger than the sum of its proper divisors (120102802).

220299806 is a wasteful number, since it uses less digits than its factorization.

220299806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15067.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 220299806 is about 14842.4999915782. The cubic root of 220299806 is about 603.9551722501.

The spelling of 220299806 in words is "two hundred twenty million, two hundred ninety-nine thousand, eight hundred six".