280495223 has 8 divisors (see below), whose sum is σ = 306576000. Its totient is φ = 255479040.

The previous prime is 280495213. The next prime is 280495249. The reversal of 280495223 is 322594082.

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

It is a cyclic number.

It is not a de Polignac number, because 280495223 - 2⁴ = 280495207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280495213) 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, 265598 + ... + 266651.

It is an arithmetic number, because the mean of its divisors is an integer number (38322000).

Almost surely, 2^280495223 is an apocalyptic number.

280495223 is a deficient number, since it is larger than the sum of its proper divisors (26080777).

280495223 is a wasteful number, since it uses less digits than its factorization.

280495223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532297.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 280495223 is about 16747.9916109365. The cubic root of 280495223 is about 654.5987270830.

The spelling of 280495223 in words is "two hundred eighty million, four hundred ninety-five thousand, two hundred twenty-three".