258938945 has 8 divisors (see below), whose sum is σ = 324236736. Its totient is φ = 198144496.

The previous prime is 258938887. The next prime is 258938959. The reversal of 258938945 is 549839852.

258938945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 258938945 - 2⁸ = 258938689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1125707 + ... + 1125936.

It is an arithmetic number, because the mean of its divisors is an integer number (40529592).

Almost surely, 2^258938945 is an apocalyptic number.

It is an amenable number.

258938945 is a deficient number, since it is larger than the sum of its proper divisors (65297791).

258938945 is a wasteful number, since it uses less digits than its factorization.

258938945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251671.

The product of its digits is 3110400, while the sum is 53.

The square root of 258938945 is about 16091.5799410748. The cubic root of 258938945 is about 637.3810168819.

The spelling of 258938945 in words is "two hundred fifty-eight million, nine hundred thirty-eight thousand, nine hundred forty-five".