280081324 has 24 divisors (see below), whose sum is σ = 520980768. Its totient is φ = 131293440.

The previous prime is 280081303. The next prime is 280081343. The reversal of 280081324 is 423180082.

It is a junction number, because it is equal to n+sod(n) for n = 280081292 and 280081301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10054 + ... + 25714.

It is an arithmetic number, because the mean of its divisors is an integer number (21707532).

Almost surely, 2^280081324 is an apocalyptic number.

It is an amenable number.

280081324 is a deficient number, since it is larger than the sum of its proper divisors (240899444).

280081324 is a wasteful number, since it uses less digits than its factorization.

280081324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15945 (or 15943 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 280081324 is about 16735.6303735473. The cubic root of 280081324 is about 654.2765930964.

The spelling of 280081324 in words is "two hundred eighty million, eighty-one thousand, three hundred twenty-four".