220774 has 8 divisors (see below), whose sum is σ = 333648. Its totient is φ = 109560.

The previous prime is 220771. The next prime is 220783. The reversal of 220774 is 477022.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220771) 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 3 ways as a sum of consecutive naturals, for example, 4 + ... + 664.

It is an arithmetic number, because the mean of its divisors is an integer number (41706).

2²²⁰⁷⁷⁴ is an apocalyptic number.

220774 is a deficient number, since it is larger than the sum of its proper divisors (112874).

220774 is a wasteful number, since it uses less digits than its factorization.

220774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830.

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 220774 is about 469.8659383271. The cubic root of 220774 is about 60.4388198322.

Adding to 220774 its reverse (477022), we get a palindrome (697796).

The spelling of 220774 in words is "two hundred twenty thousand, seven hundred seventy-four", and thus it is an iban number.