280074 has 8 divisors (see below), whose sum is σ = 560160. Its totient is φ = 93356.

The previous prime is 280069. The next prime is 280097. The reversal of 280074 is 470082.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

280074 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 280074.

It is an unprimeable number.

280074 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, 23334 + ... + 23345.

It is an arithmetic number, because the mean of its divisors is an integer number (70020).

2²⁸⁰⁰⁷⁴ is an apocalyptic number.

280074 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

280074 is a wasteful number, since it uses less digits than its factorization.

280074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46684.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 280074 is about 529.2201810211. The cubic root of 280074 is about 65.4270890034.

The spelling of 280074 in words is "two hundred eighty thousand, seventy-four".