258034986 has 48 divisors (see below), whose sum is σ = 612694368. Its totient is φ = 77834400.

The previous prime is 258034969. The next prime is 258035033. The reversal of 258034986 is 689430852.

258034986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42076 + ... + 47816.

It is an arithmetic number, because the mean of its divisors is an integer number (12764466).

Almost surely, 2^258034986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258034986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306347184).

258034986 is an abundant number, since it is smaller than the sum of its proper divisors (354659382).

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

258034986 is a wasteful number, since it uses less digits than its factorization.

258034986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5987 (or 5984 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 258034986 is about 16063.4674339011. The cubic root of 258034986 is about 636.6384504854.

The spelling of 258034986 in words is "two hundred fifty-eight million, thirty-four thousand, nine hundred eighty-six".