280830412 has 24 divisors (see below), whose sum is σ = 547752240. Its totient is φ = 125199360.

The previous prime is 280830379. The next prime is 280830413. The reversal of 280830412 is 214038082.

It is not an unprimeable number, because it can be changed into a prime (280830413) 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 7 ways as a sum of consecutive naturals, for example, 107389 + ... + 109972.

It is an arithmetic number, because the mean of its divisors is an integer number (22823010).

Almost surely, 2^280830412 is an apocalyptic number.

It is an amenable number.

280830412 is a deficient number, since it is larger than the sum of its proper divisors (266921828).

280830412 is a wasteful number, since it uses less digits than its factorization.

280830412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217401 (or 217399 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 280830412 is about 16757.9954648520. The cubic root of 280830412 is about 654.8593696103.

Adding to 280830412 its reverse (214038082), we get a palindrome (494868494).

The spelling of 280830412 in words is "two hundred eighty million, eight hundred thirty thousand, four hundred twelve".