280874881 has 8 divisors (see below), whose sum is σ = 329675840. Its totient is φ = 234242928.

The previous prime is 280874879. The next prime is 280874897. The reversal of 280874881 is 188478082.

It is a happy number.

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 280874881 - 2¹ = 280874879 is a prime.

It is a super-2 number, since 2×280874881² = 157781397553528322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280874801) 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, 541971 + ... + 542488.

It is an arithmetic number, because the mean of its divisors is an integer number (41209480).

Almost surely, 2^280874881 is an apocalyptic number.

It is an amenable number.

280874881 is a deficient number, since it is larger than the sum of its proper divisors (48800959).

280874881 is a wasteful number, since it uses less digits than its factorization.

280874881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084503.

The product of its (nonzero) digits is 229376, while the sum is 46.

The square root of 280874881 is about 16759.3222118318. The cubic root of 280874881 is about 654.8939330611.

The spelling of 280874881 in words is "two hundred eighty million, eight hundred seventy-four thousand, eight hundred eighty-one".