258558216 has 64 divisors (see below), whose sum is σ = 741502080. Its totient is φ = 73597440.

The previous prime is 258558211. The next prime is 258558217. The reversal of 258558216 is 612855852.

It is a super-2 number, since 2×258558216² = 133704702122205312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (258558211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44470 + ... + 49946.

It is an arithmetic number, because the mean of its divisors is an integer number (11585970).

Almost surely, 2^258558216 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 258558216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370751040).

258558216 is an abundant number, since it is smaller than the sum of its proper divisors (482943864).

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

258558216 is a wasteful number, since it uses less digits than its factorization.

258558216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5774 (or 5770 counting only the distinct ones).

The product of its digits is 192000, while the sum is 42.

The square root of 258558216 is about 16079.7455203744. The cubic root of 258558216 is about 637.0684741315.

The spelling of 258558216 in words is "two hundred fifty-eight million, five hundred fifty-eight thousand, two hundred sixteen".