805480 has 32 divisors (see below), whose sum is σ = 1953000. Its totient is φ = 297216.

The previous prime is 805471. The next prime is 805487. The reversal of 805480 is 84508.

It can be written as a sum of positive squares in 4 ways, for example, as 438244 + 367236 = 662^2 + 606^2 .

It is not an unprimeable number, because it can be changed into a prime (805487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255 + ... + 1294.

2⁸⁰⁵⁴⁸⁰ is an apocalyptic number.

It is an amenable number.

805480 is an abundant number, since it is smaller than the sum of its proper divisors (1147520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

805480 is a wasteful number, since it uses less digits than its factorization.

805480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 805480 is about 897.4853759254. The cubic root of 805480 is about 93.0432604070.

Adding to 805480 its reverse (84508), we get a palindrome (889988).

The spelling of 805480 in words is "eight hundred five thousand, four hundred eighty".