280828088 has 32 divisors (see below), whose sum is σ = 537580800. Its totient is φ = 137498592.

The previous prime is 280828073. The next prime is 280828099. The reversal of 280828088 is 880828082.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94481 + ... + 97407.

It is an arithmetic number, because the mean of its divisors is an integer number (16799400).

Almost surely, 2^280828088 is an apocalyptic number.

It is an amenable number.

280828088 is a deficient number, since it is larger than the sum of its proper divisors (256752712).

280828088 is a wasteful number, since it uses less digits than its factorization.

280828088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179 (or 3175 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 44.

The square root of 280828088 is about 16757.9261246731. The cubic root of 280828088 is about 654.8575631851.

The spelling of 280828088 in words is "two hundred eighty million, eight hundred twenty-eight thousand, eighty-eight".