258540216 has 96 divisors (see below), whose sum is σ = 752386320. Its totient is φ = 73722880.

The previous prime is 258540187. The next prime is 258540223. The reversal of 258540216 is 612045852.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 23 ways as a sum of consecutive naturals, for example, 46750 + ... + 51986.

Almost surely, 2^258540216 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 258540216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376193160).

258540216 is an abundant number, since it is smaller than the sum of its proper divisors (493846104).

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

258540216 is a wasteful number, since it uses less digits than its factorization.

258540216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285 (or 5270 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 258540216 is about 16079.1858002823. The cubic root of 258540216 is about 637.0536902286.

The spelling of 258540216 in words is "two hundred fifty-eight million, five hundred forty thousand, two hundred sixteen".