480261809 has 4 divisors (see below), whose sum is σ = 480322404. Its totient is φ = 480201216.

The previous prime is 480261799. The next prime is 480261869. The reversal of 480261809 is 908162084.

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 101103025 + 379158784 = 10055^2 + 19472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-480261809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (480261869) 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 3 ways as a sum of consecutive naturals, for example, 16232 + ... + 34985.

It is an arithmetic number, because the mean of its divisors is an integer number (120080601).

Almost surely, 2^480261809 is an apocalyptic number.

It is an amenable number.

480261809 is a deficient number, since it is larger than the sum of its proper divisors (60595).

480261809 is an equidigital number, since it uses as much as digits as its factorization.

480261809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60594.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 480261809 is about 21914.8764313194. The cubic root of 480261809 is about 783.1158561909.

The spelling of 480261809 in words is "four hundred eighty million, two hundred sixty-one thousand, eight hundred nine".