280164 has 24 divisors (see below), whose sum is σ = 672448. Its totient is φ = 90720.

The previous prime is 280139. The next prime is 280183. The reversal of 280164 is 461082.

280164 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

280164 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a self number, because there is not a number n which added to its sum of digits gives 280164.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 280164.

It is an unprimeable number.

280164 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129 + ... + 759.

2²⁸⁰¹⁶⁴ is an apocalyptic number.

It is an amenable number.

280164 is an abundant number, since it is smaller than the sum of its proper divisors (392284).

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

280164 is a wasteful number, since it uses less digits than its factorization.

280164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 280164 is about 529.3052049621. The cubic root of 280164 is about 65.4340964460.

It can be divided in two parts, 280 and 164, that added together give a palindrome (444).

The spelling of 280164 in words is "two hundred eighty thousand, one hundred sixty-four".