258168493 has 8 divisors (see below), whose sum is σ = 281762496. Its totient is φ = 234595200.

The previous prime is 258168467. The next prime is 258168497. The reversal of 258168493 is 394861852.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258168493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258168497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33480 + ... + 40462.

It is an arithmetic number, because the mean of its divisors is an integer number (35220312).

Almost surely, 2^258168493 is an apocalyptic number.

It is an amenable number.

258168493 is a deficient number, since it is larger than the sum of its proper divisors (23594003).

258168493 is a wasteful number, since it uses less digits than its factorization.

258168493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10355.

The product of its digits is 414720, while the sum is 46.

The square root of 258168493 is about 16067.6225061457. The cubic root of 258168493 is about 636.7482302176.

The spelling of 258168493 in words is "two hundred fifty-eight million, one hundred sixty-eight thousand, four hundred ninety-three".