258489447 has 16 divisors (see below), whose sum is σ = 347972352. Its totient is φ = 170674560.

The previous prime is 258489431. The next prime is 258489457. The reversal of 258489447 is 744984852.

It is not a de Polignac number, because 258489447 - 2⁴ = 258489431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 258489447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258489457) 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, 168072 + ... + 169602.

It is an arithmetic number, because the mean of its divisors is an integer number (21748272).

Almost surely, 2^258489447 is an apocalyptic number.

258489447 is a deficient number, since it is larger than the sum of its proper divisors (89482905).

258489447 is a wasteful number, since it uses less digits than its factorization.

258489447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038.

The product of its digits is 2580480, while the sum is 51.

The square root of 258489447 is about 16077.6070047753. The cubic root of 258489447 is about 637.0119885332.

The spelling of 258489447 in words is "two hundred fifty-eight million, four hundred eighty-nine thousand, four hundred forty-seven".