258785488 has 40 divisors (see below), whose sum is σ = 542076416. Its totient is φ = 118972800.

The previous prime is 258785477. The next prime is 258785503. The reversal of 258785488 is 884587852.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54073 + ... + 58663.

Almost surely, 2^258785488 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 258785488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271038208).

258785488 is an abundant number, since it is smaller than the sum of its proper divisors (283290928).

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

258785488 is a wasteful number, since it uses less digits than its factorization.

258785488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4883 (or 4877 counting only the distinct ones).

The product of its digits is 5734400, while the sum is 55.

The square root of 258785488 is about 16086.8109953465. The cubic root of 258785488 is about 637.2550799779.

The spelling of 258785488 in words is "two hundred fifty-eight million, seven hundred eighty-five thousand, four hundred eighty-eight".