258898668 has 24 divisors (see below), whose sum is σ = 690396672. Its totient is φ = 73971024.

The previous prime is 258898643. The next prime is 258898681. The reversal of 258898668 is 866898852.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1540980 + ... + 1541147.

It is an arithmetic number, because the mean of its divisors is an integer number (28766528).

Almost surely, 2^258898668 is an apocalyptic number.

258898668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

258898668 is an abundant number, since it is smaller than the sum of its proper divisors (431498004).

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

258898668 is a wasteful number, since it uses less digits than its factorization.

258898668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082141 (or 3082139 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 60.

The square root of 258898668 is about 16090.3283993833. The cubic root of 258898668 is about 637.3479677444.

The spelling of 258898668 in words is "two hundred fifty-eight million, eight hundred ninety-eight thousand, six hundred sixty-eight".