220002306 has 16 divisors (see below), whose sum is σ = 440815584. Its totient is φ = 73198944.

The previous prime is 220002301. The next prime is 220002331. The reversal of 220002306 is 603200022.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220002301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30235 + ... + 36798.

It is an arithmetic number, because the mean of its divisors is an integer number (27550974).

Almost surely, 2^220002306 is an apocalyptic number.

220002306 is an abundant number, since it is smaller than the sum of its proper divisors (220813278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220002306 is a wasteful number, since it uses less digits than its factorization.

220002306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67585.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 220002306 is about 14832.4747092318. The cubic root of 220002306 is about 603.6831828975.

Adding to 220002306 its reverse (603200022), we get a palindrome (823202328).

The spelling of 220002306 in words is "two hundred twenty million, two thousand, three hundred six".