258489345 has 16 divisors (see below), whose sum is σ = 419409792. Its totient is φ = 135918720.

The previous prime is 258489337. The next prime is 258489349. The reversal of 258489345 is 543984852.

It is not a de Polignac number, because 258489345 - 2³ = 258489337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 258489294 and 258489303.

It is not an unprimeable number, because it can be changed into a prime (258489349) 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, 120292 + ... + 122421.

It is an arithmetic number, because the mean of its divisors is an integer number (26213112).

Almost surely, 2^258489345 is an apocalyptic number.

It is an amenable number.

258489345 is a deficient number, since it is larger than the sum of its proper divisors (160920447).

258489345 is a wasteful number, since it uses less digits than its factorization.

258489345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242792.

The product of its digits is 1382400, while the sum is 48.

The square root of 258489345 is about 16077.6038326611. The cubic root of 258489345 is about 637.0119047448.

The spelling of 258489345 in words is "two hundred fifty-eight million, four hundred eighty-nine thousand, three hundred forty-five".