280148448 has 24 divisors (see below), whose sum is σ = 735389928. Its totient is φ = 93382784.

The previous prime is 280148443. The next prime is 280148467. The reversal of 280148448 is 844841082.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280148443) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1459011 + ... + 1459202.

It is an arithmetic number, because the mean of its divisors is an integer number (30641247).

Almost surely, 2^280148448 is an apocalyptic number.

It is an amenable number.

280148448 is an abundant number, since it is smaller than the sum of its proper divisors (455241480).

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

280148448 is a wasteful number, since it uses less digits than its factorization.

280148448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918226 (or 2918218 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 39.

The square root of 280148448 is about 16737.6356753276. The cubic root of 280148448 is about 654.3288566717.

The spelling of 280148448 in words is "two hundred eighty million, one hundred forty-eight thousand, four hundred forty-eight".