260426 has 8 divisors (see below), whose sum is σ = 397440. Its totient is φ = 127948.

The previous prime is 260419. The next prime is 260441. The reversal of 260426 is 624062.

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

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 260398 and 260407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 986 + ... + 1221.

It is an arithmetic number, because the mean of its divisors is an integer number (49680).

2²⁶⁰⁴²⁶ is an apocalyptic number.

260426 is a deficient number, since it is larger than the sum of its proper divisors (137014).

260426 is a wasteful number, since it uses less digits than its factorization.

260426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 260426 is about 510.3195077596. The cubic root of 260426 is about 63.8598822606.

Adding to 260426 its reverse (624062), we get a palindrome (884488).

It can be divided in two parts, 260 and 426, that added together give a palindrome (686).

The spelling of 260426 in words is "two hundred sixty thousand, four hundred twenty-six".