280424799 has 12 divisors (see below), whose sum is σ = 410186400. Its totient is φ = 184582944.

The previous prime is 280424773. The next prime is 280424803. The reversal of 280424799 is 997424082.

It is not a de Polignac number, because 280424799 - 2¹⁶ = 280359263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280424719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196494 + ... + 197915.

It is an arithmetic number, because the mean of its divisors is an integer number (34182200).

Almost surely, 2^280424799 is an apocalyptic number.

280424799 is a deficient number, since it is larger than the sum of its proper divisors (129761601).

280424799 is a wasteful number, since it uses less digits than its factorization.

280424799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394494 (or 394491 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 280424799 is about 16745.8890179053. The cubic root of 280424799 is about 654.5439390800.

The spelling of 280424799 in words is "two hundred eighty million, four hundred twenty-four thousand, seven hundred ninety-nine".