280984441 has 2 divisors, whose sum is σ = 280984442. Its totient is φ = 280984440.

The previous prime is 280984427. The next prime is 280984447. The reversal of 280984441 is 144489082.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200505600 + 80478841 = 14160^2 + 8971^2 .

It is a cyclic number.

It is not a de Polignac number, because 280984441 - 2⁵ = 280984409 is a prime.

It is a super-4 number, since 4×280984441⁴ (a number of 35 digits) contains 4444 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 280984394 and 280984403.

It is not a weakly prime, because it can be changed into another prime (280984447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140492220 + 140492221.

It is an arithmetic number, because the mean of its divisors is an integer number (140492221).

Almost surely, 2^280984441 is an apocalyptic number.

It is an amenable number.

280984441 is a deficient number, since it is larger than the sum of its proper divisors (1).

280984441 is an equidigital number, since it uses as much as digits as its factorization.

280984441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 280984441 is about 16762.5905217541. The cubic root of 280984441 is about 654.9790728120.

The spelling of 280984441 in words is "two hundred eighty million, nine hundred eighty-four thousand, four hundred forty-one".