260464621 has 4 divisors (see below), whose sum is σ = 260832700. Its totient is φ = 260096544.

The previous prime is 260464613. The next prime is 260464637. The reversal of 260464621 is 126464062.

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 10982596 + 249482025 = 3314^2 + 15795^2 .

It is a cyclic number.

It is not a de Polignac number, because 260464621 - 2³ = 260464613 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 (260464601) 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 3 ways as a sum of consecutive naturals, for example, 182976 + ... + 184393.

It is an arithmetic number, because the mean of its divisors is an integer number (65208175).

Almost surely, 2^260464621 is an apocalyptic number.

It is an amenable number.

260464621 is a deficient number, since it is larger than the sum of its proper divisors (368079).

260464621 is an equidigital number, since it uses as much as digits as its factorization.

260464621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368078.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 260464621 is about 16138.9163514779. The cubic root of 260464621 is about 638.6303889707.

The spelling of 260464621 in words is "two hundred sixty million, four hundred sixty-four thousand, six hundred twenty-one".