260399258 has 16 divisors (see below), whose sum is σ = 449245824. Its totient is φ = 110887920.

The previous prime is 260399239. The next prime is 260399299. The reversal of 260399258 is 852993062.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 57038 + ... + 61433.

It is an arithmetic number, because the mean of its divisors is an integer number (28077864).

Almost surely, 2^260399258 is an apocalyptic number.

260399258 is a deficient number, since it is larger than the sum of its proper divisors (188846566).

260399258 is a wasteful number, since it uses less digits than its factorization.

260399258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118637.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 260399258 is about 16136.8912123742. The cubic root of 260399258 is about 638.5769635570.

The spelling of 260399258 in words is "two hundred sixty million, three hundred ninety-nine thousand, two hundred fifty-eight".