258215112 has 96 divisors (see below), whose sum is σ = 733898880. Its totient is φ = 81861120.

The previous prime is 258215107. The next prime is 258215131. The reversal of 258215112 is 211512852.

It is a happy number.

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, 398773 + ... + 399419.

It is an arithmetic number, because the mean of its divisors is an integer number (7644780).

Almost surely, 2^258215112 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 258215112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366949440).

258215112 is an abundant number, since it is smaller than the sum of its proper divisors (475683768).

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

258215112 is a wasteful number, since it uses less digits than its factorization.

258215112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923 (or 916 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The square root of 258215112 is about 16069.0731531100. The cubic root of 258215112 is about 636.7865550325.

Adding to 258215112 its reverse (211512852), we get a palindrome (469727964).

The spelling of 258215112 in words is "two hundred fifty-eight million, two hundred fifteen thousand, one hundred twelve".