220790 has 8 divisors (see below), whose sum is σ = 397440. Its totient is φ = 88312.

The previous prime is 220789. The next prime is 220793. The reversal of 220790 is 97022.

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 (220793) 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, 11030 + ... + 11049.

It is an arithmetic number, because the mean of its divisors is an integer number (49680).

2²²⁰⁷⁹⁰ is an apocalyptic number.

220790 is a deficient number, since it is larger than the sum of its proper divisors (176650).

220790 is a wasteful number, since it uses less digits than its factorization.

220790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22086.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 220790 is about 469.8829641517. The cubic root of 220790 is about 60.4402798437.

The spelling of 220790 in words is "two hundred twenty thousand, seven hundred ninety".