258919992 has 96 divisors (see below), whose sum is σ = 754041600. Its totient is φ = 80004672.

The previous prime is 258919981. The next prime is 258920023. The reversal of 258919992 is 299919852.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 62283 + ... + 66309.

It is an arithmetic number, because the mean of its divisors is an integer number (7854600).

Almost surely, 2^258919992 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 258919992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377020800).

258919992 is an abundant number, since it is smaller than the sum of its proper divisors (495121608).

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

258919992 is a wasteful number, since it uses less digits than its factorization.

258919992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105 (or 4098 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 54.

The square root of 258919992 is about 16090.9910198222. The cubic root of 258919992 is about 637.3654654975.

The spelling of 258919992 in words is "two hundred fifty-eight million, nine hundred nineteen thousand, nine hundred ninety-two".