220206346 has 8 divisors (see below), whose sum is σ = 330372900. Its totient is φ = 110082048.

The previous prime is 220206341. The next prime is 220206353. The reversal of 220206346 is 643602022.

It is a happy number.

220206346 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 199911321 + 20295025 = 14139^2 + 4505^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 220206346.

It is not an unprimeable number, because it can be changed into a prime (220206341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12810 + ... + 24586.

Almost surely, 2^220206346 is an apocalyptic number.

220206346 is a deficient number, since it is larger than the sum of its proper divisors (110166554).

220206346 is a wasteful number, since it uses less digits than its factorization.

220206346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21128.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 220206346 is about 14839.3512661437. The cubic root of 220206346 is about 603.8697528461.

Adding to 220206346 its reverse (643602022), we get a palindrome (863808368).

The spelling of 220206346 in words is "two hundred twenty million, two hundred six thousand, three hundred forty-six".