258082812 has 72 divisors (see below), whose sum is σ = 725262720. Its totient is φ = 76844160.

The previous prime is 258082787. The next prime is 258082817. The reversal of 258082812 is 218280852.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258082817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5614 + ... + 23402.

Almost surely, 2^258082812 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 258082812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362631360).

258082812 is an abundant number, since it is smaller than the sum of its proper divisors (467179908).

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

258082812 is a wasteful number, since it uses less digits than its factorization.

258082812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17843 (or 17838 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 258082812 is about 16064.9560223488. The cubic root of 258082812 is about 636.6777810559.

The spelling of 258082812 in words is "two hundred fifty-eight million, eighty-two thousand, eight hundred twelve".