260323621 has 8 divisors (see below), whose sum is σ = 265002584. Its totient is φ = 255674880.

The previous prime is 260323589. The next prime is 260323631. The reversal of 260323621 is 126323062.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 57972996 + 202350625 = 7614^2 + 14225^2 .

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 260323621 - 2⁵ = 260323589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260323631) 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, 10195 + ... + 24991.

It is an arithmetic number, because the mean of its divisors is an integer number (33125323).

Almost surely, 2^260323621 is an apocalyptic number.

It is an amenable number.

260323621 is a deficient number, since it is larger than the sum of its proper divisors (4678963).

260323621 is a wasteful number, since it uses less digits than its factorization.

260323621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15111.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 260323621 is about 16134.5474370991. The cubic root of 260323621 is about 638.5151293780.

Adding to 260323621 its reverse (126323062), we get a palindrome (386646683).

The spelling of 260323621 in words is "two hundred sixty million, three hundred twenty-three thousand, six hundred twenty-one".