280820060 has 12 divisors (see below), whose sum is σ = 589722168. Its totient is φ = 112328016.

The previous prime is 280820053. The next prime is 280820077. The reversal of 280820060 is 60028082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7020482 + ... + 7020521.

It is an arithmetic number, because the mean of its divisors is an integer number (49143514).

Almost surely, 2^280820060 is an apocalyptic number.

280820060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280820060 is an abundant number, since it is smaller than the sum of its proper divisors (308902108).

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

280820060 is a wasteful number, since it uses less digits than its factorization.

280820060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14041012 (or 14041010 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 280820060 is about 16757.6865945154. The cubic root of 280820060 is about 654.8513230132.

The spelling of 280820060 in words is "two hundred eighty million, eight hundred twenty thousand, sixty".