259540068 has 12 divisors (see below), whose sum is σ = 605593520. Its totient is φ = 86513352.

The previous prime is 259540049. The next prime is 259540069. The reversal of 259540068 is 860045952.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×259540068² = 134722093794889248, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (259540069) 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, 10814158 + ... + 10814181.

Almost surely, 2^259540068 is an apocalyptic number.

It is an amenable number.

259540068 is an abundant number, since it is smaller than the sum of its proper divisors (346053452).

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

259540068 is a wasteful number, since it uses less digits than its factorization.

259540068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21628346 (or 21628344 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 259540068 is about 16110.2472979157. The cubic root of 259540068 is about 637.8738592940.

The spelling of 259540068 in words is "two hundred fifty-nine million, five hundred forty thousand, sixty-eight".