258189228 has 96 divisors (see below), whose sum is σ = 740759040. Its totient is φ = 77112000.

The previous prime is 258189227. The next prime is 258189287. The reversal of 258189228 is 822981852.

258189228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (258189221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82818 + ... + 85878.

It is an arithmetic number, because the mean of its divisors is an integer number (7716240).

Almost surely, 2^258189228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258189228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370379520).

258189228 is an abundant number, since it is smaller than the sum of its proper divisors (482569812).

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

258189228 is a wasteful number, since it uses less digits than its factorization.

258189228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156 (or 3148 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 258189228 is about 16068.2677348867. The cubic root of 258189228 is about 636.7652767349.

It can be divided in two parts, 2581 and 89228, that added together give a square (91809 = 303²).

The spelling of 258189228 in words is "two hundred fifty-eight million, one hundred eighty-nine thousand, two hundred twenty-eight".