220946 has 16 divisors (see below), whose sum is σ = 368928. Its totient is φ = 99220.

The previous prime is 220939. The next prime is 220973. The reversal of 220946 is 649022.

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, 2621 + ... + 2703.

It is an arithmetic number, because the mean of its divisors is an integer number (23058).

2²²⁰⁹⁴⁶ is an apocalyptic number.

220946 is a deficient number, since it is larger than the sum of its proper divisors (147982).

220946 is an equidigital number, since it uses as much as digits as its factorization.

220946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 220946 is about 470.0489336229. The cubic root of 220946 is about 60.4545112610.

Adding to 220946 its reverse (649022), we get a palindrome (869968).

The spelling of 220946 in words is "two hundred twenty thousand, nine hundred forty-six".