260662399 has 4 divisors (see below), whose sum is σ = 263591280. Its totient is φ = 257733520.

The previous prime is 260662393. The next prime is 260662417. The reversal of 260662399 is 993266062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 260662399 - 2⁷ = 260662271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260662393) 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 3 ways as a sum of consecutive naturals, for example, 1464307 + ... + 1464484.

It is an arithmetic number, because the mean of its divisors is an integer number (65897820).

Almost surely, 2^260662399 is an apocalyptic number.

260662399 is a deficient number, since it is larger than the sum of its proper divisors (2928881).

260662399 is an equidigital number, since it uses as much as digits as its factorization.

260662399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928880.

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 260662399 is about 16145.0425518176. The cubic root of 260662399 is about 638.7919913214.

The spelling of 260662399 in words is "two hundred sixty million, six hundred sixty-two thousand, three hundred ninety-nine".