220746 has 8 divisors (see below), whose sum is σ = 441504. Its totient is φ = 73580.

The previous prime is 220721. The next prime is 220747. The reversal of 220746 is 647022.

It is a happy number.

220746 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

220746 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (220747) 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, 18390 + ... + 18401.

It is an arithmetic number, because the mean of its divisors is an integer number (55188).

2²²⁰⁷⁴⁶ is an apocalyptic number.

220746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

220746 is a wasteful number, since it uses less digits than its factorization.

220746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36796.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 220746 is about 469.8361416494. The cubic root of 220746 is about 60.4362646422.

Adding to 220746 its reverse (647022), we get a palindrome (867768).

The spelling of 220746 in words is "two hundred twenty thousand, seven hundred forty-six".