260491886 has 8 divisors (see below), whose sum is σ = 396090624. Its totient is φ = 128461680.

The previous prime is 260491883. The next prime is 260491909. The reversal of 260491886 is 688194062.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260491883) 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, 891950 + ... + 892241.

It is an arithmetic number, because the mean of its divisors is an integer number (49511328).

Almost surely, 2^260491886 is an apocalyptic number.

260491886 is a deficient number, since it is larger than the sum of its proper divisors (135598738).

260491886 is a wasteful number, since it uses less digits than its factorization.

260491886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784266.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 260491886 is about 16139.7610267315. The cubic root of 260491886 is about 638.6526717795.

The spelling of 260491886 in words is "two hundred sixty million, four hundred ninety-one thousand, eight hundred eighty-six".