609258 has 32 divisors (see below), whose sum is σ = 1342656. Its totient is φ = 183168.

The previous prime is 609253. The next prime is 609269. The reversal of 609258 is 852906.

It is not an unprimeable number, because it can be changed into a prime (609253) 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 15 ways as a sum of consecutive naturals, for example, 5641 + ... + 5747.

It is an arithmetic number, because the mean of its divisors is an integer number (41958).

2⁶⁰⁹²⁵⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 609258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (671328).

609258 is an abundant number, since it is smaller than the sum of its proper divisors (733398).

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

609258 is a wasteful number, since it uses less digits than its factorization.

609258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 609258 is about 780.5498062264. The cubic root of 609258 is about 84.7748597897.

The spelling of 609258 in words is "six hundred nine thousand, two hundred fifty-eight".