260002631 has 8 divisors (see below), whose sum is σ = 312785280. Its totient is φ = 211129848.

The previous prime is 260002627. The next prime is 260002711. The reversal of 260002631 is 136200062.

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 260002631 - 2² = 260002627 is a prime.

It is a super-2 number, since 2×260002631² = 135202736253844322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260002601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977321 + ... + 977586.

It is an arithmetic number, because the mean of its divisors is an integer number (39098160).

Almost surely, 2^260002631 is an apocalyptic number.

260002631 is a deficient number, since it is larger than the sum of its proper divisors (52782649).

260002631 is a wasteful number, since it uses less digits than its factorization.

260002631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954933.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 260002631 is about 16124.5970802374. The cubic root of 260002631 is about 638.2525827465.

Adding to 260002631 its reverse (136200062), we get a palindrome (396202693).

The spelling of 260002631 in words is "two hundred sixty million, two thousand, six hundred thirty-one".