259990 has 8 divisors (see below), whose sum is σ = 468000. Its totient is φ = 103992.

The previous prime is 259967. The next prime is 259991. The reversal of 259990 is 99952.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12990 + ... + 13009.

It is an arithmetic number, because the mean of its divisors is an integer number (58500).

2²⁵⁹⁹⁹⁰ is an apocalyptic number.

259990 is a deficient number, since it is larger than the sum of its proper divisors (208010).

259990 is a wasteful number, since it uses less digits than its factorization.

259990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26006.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 259990 is about 509.8921454582. The cubic root of 259990 is about 63.8242247083.

The spelling of 259990 in words is "two hundred fifty-nine thousand, nine hundred ninety".