259940999 has 8 divisors (see below), whose sum is σ = 275377968. Its totient is φ = 244520320.

The previous prime is 259940987. The next prime is 259941001. The reversal of 259940999 is 999049952.

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 259940999 - 2⁸ = 259940743 is a prime.

It is a super-2 number, since 2×259940999² = 135138645922236002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259940929) 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, 47684 + ... + 52854.

It is an arithmetic number, because the mean of its divisors is an integer number (34422246).

Almost surely, 2^259940999 is an apocalyptic number.

259940999 is a deficient number, since it is larger than the sum of its proper divisors (15436969).

259940999 is a wasteful number, since it uses less digits than its factorization.

259940999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8145.

The product of its (nonzero) digits is 2361960, while the sum is 56.

The square root of 259940999 is about 16122.6858494483. The cubic root of 259940999 is about 638.2021474982.

The spelling of 259940999 in words is "two hundred fifty-nine million, nine hundred forty thousand, nine hundred ninety-nine".