280528352 has 24 divisors (see below), whose sum is σ = 594774936. Its totient is φ = 129474432.

The previous prime is 280528351. The next prime is 280528357. The reversal of 280528352 is 253825082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280528351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336758 + ... + 337589.

It is an arithmetic number, because the mean of its divisors is an integer number (24782289).

Almost surely, 2^280528352 is an apocalyptic number.

It is an amenable number.

280528352 is an abundant number, since it is smaller than the sum of its proper divisors (314246584).

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

280528352 is a wasteful number, since it uses less digits than its factorization.

280528352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674370 (or 674362 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 280528352 is about 16748.9806256978. The cubic root of 280528352 is about 654.6244973942.

The spelling of 280528352 in words is "two hundred eighty million, five hundred twenty-eight thousand, three hundred fifty-two".