280604480 has 56 divisors (see below), whose sum is σ = 719599272. Its totient is φ = 103606272.

The previous prime is 280604479. The next prime is 280604497. The reversal of 280604480 is 84406082.

280604480 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6635776 + 273968704 = 2576^2 + 16552^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 29567 + ... + 37886.

It is an arithmetic number, because the mean of its divisors is an integer number (12849987).

Almost surely, 2^280604480 is an apocalyptic number.

280604480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280604480 is an abundant number, since it is smaller than the sum of its proper divisors (438994792).

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

280604480 is a wasteful number, since it uses less digits than its factorization.

280604480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67483 (or 67473 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 280604480 is about 16751.2530874559. The cubic root of 280604480 is about 654.6837079827.

The spelling of 280604480 in words is "two hundred eighty million, six hundred four thousand, four hundred eighty".