260400163 has 8 divisors (see below), whose sum is σ = 266821632. Its totient is φ = 254015496.

The previous prime is 260400137. The next prime is 260400223. The reversal of 260400163 is 361004062.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260400163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260400113) 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 7 ways as a sum of consecutive naturals, for example, 5406 + ... + 23452.

It is an arithmetic number, because the mean of its divisors is an integer number (33352704).

Almost surely, 2^260400163 is an apocalyptic number.

260400163 is a deficient number, since it is larger than the sum of its proper divisors (6421469).

260400163 is a wasteful number, since it uses less digits than its factorization.

260400163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18401.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 260400163 is about 16136.9192536866. The cubic root of 260400163 is about 638.5777033332.

The spelling of 260400163 in words is "two hundred sixty million, four hundred thousand, one hundred sixty-three".