807280 has 20 divisors (see below), whose sum is σ = 1877112. Its totient is φ = 322880.

The previous prime is 807259. The next prime is 807281. The reversal of 807280 is 82708.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (807281) by changing a digit.

807280 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4966 + ... + 5125.

2⁸⁰⁷²⁸⁰ is an apocalyptic number.

807280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

807280 is an abundant number, since it is smaller than the sum of its proper divisors (1069832).

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

807280 is a wasteful number, since it uses less digits than its factorization.

807280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10104 (or 10098 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 807280 is about 898.4876181673. The cubic root of 807280 is about 93.1125165315.

Adding to 807280 its reverse (82708), we get a palindrome (889988).

The spelling of 807280 in words is "eight hundred seven thousand, two hundred eighty".