280480566 has 16 divisors (see below), whose sum is σ = 561564864. Its totient is φ = 93392904.

The previous prime is 280480493. The next prime is 280480567. The reversal of 280480566 is 665084082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280480567) 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, 19000 + ... + 30363.

It is an arithmetic number, because the mean of its divisors is an integer number (35097804).

Almost surely, 2^280480566 is an apocalyptic number.

280480566 is an abundant number, since it is smaller than the sum of its proper divisors (281084298).

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

280480566 is a wasteful number, since it uses less digits than its factorization.

280480566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50315.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 280480566 is about 16747.5540303652. The cubic root of 280480566 is about 654.5873250818.

The spelling of 280480566 in words is "two hundred eighty million, four hundred eighty thousand, five hundred sixty-six".