280860039 has 12 divisors (see below), whose sum is σ = 405834000. Its totient is φ = 187172064.

The previous prime is 280860029. The next prime is 280860079. The reversal of 280860039 is 930068082.

It is not a de Polignac number, because 280860039 - 2¹² = 280855943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 280859985 and 280860012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280860029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39262 + ... + 45860.

It is an arithmetic number, because the mean of its divisors is an integer number (33819500).

Almost surely, 2^280860039 is an apocalyptic number.

280860039 is a deficient number, since it is larger than the sum of its proper divisors (124973961).

280860039 is a wasteful number, since it uses less digits than its factorization.

280860039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11334 (or 11331 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 280860039 is about 16758.8794076454. The cubic root of 280860039 is about 654.8823975487.

The spelling of 280860039 in words is "two hundred eighty million, eight hundred sixty thousand, thirty-nine".