260211401 has 4 divisors (see below), whose sum is σ = 275517972. Its totient is φ = 244904832.

The previous prime is 260211383. The next prime is 260211409. The reversal of 260211401 is 104112062.

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

It can be written as a sum of positive squares in 2 ways, for example, as 243204025 + 17007376 = 15595^2 + 4124^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260211401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 15306553 = 260211401 / (2 + 6 + 0 + 2 + 1 + 1 + 4 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 260211401.

It is not an unprimeable number, because it can be changed into a prime (260211409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7653260 + ... + 7653293.

It is an arithmetic number, because the mean of its divisors is an integer number (68879493).

Almost surely, 2^260211401 is an apocalyptic number.

It is an amenable number.

260211401 is a deficient number, since it is larger than the sum of its proper divisors (15306571).

260211401 is a wasteful number, since it uses less digits than its factorization.

260211401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15306570.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 260211401 is about 16131.0694313799. The cubic root of 260211401 is about 638.4233660743.

Adding to 260211401 its reverse (104112062), we get a palindrome (364323463).

The spelling of 260211401 in words is "two hundred sixty million, two hundred eleven thousand, four hundred one".