609220 has 24 divisors (see below), whose sum is σ = 1298304. Its totient is φ = 240096.

The previous prime is 609209. The next prime is 609221. The reversal of 609220 is 22906.

It is a super-2 number, since 2×609220² = 742298016800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (609221) by changing a digit.

609220 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1477 + ... + 1843.

It is an arithmetic number, because the mean of its divisors is an integer number (54096).

2⁶⁰⁹²²⁰ is an apocalyptic number.

It is an amenable number.

609220 is an abundant number, since it is smaller than the sum of its proper divisors (689084).

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

609220 is a wasteful number, since it uses less digits than its factorization.

609220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 609220 is about 780.5254640305. The cubic root of 609220 is about 84.7730972569.

The spelling of 609220 in words is "six hundred nine thousand, two hundred twenty".