280706441 has 2 divisors, whose sum is σ = 280706442. Its totient is φ = 280706440.

The previous prime is 280706369. The next prime is 280706443. The reversal of 280706441 is 144607082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196140025 + 84566416 = 14005^2 + 9196^2 .

It is a cyclic number.

It is not a de Polignac number, because 280706441 - 2¹⁰ = 280705417 is a prime.

It is a super-2 number, since 2×280706441² = 157592212037772962, which contains 22 as substring.

Together with 280706443, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_15262475 and since 280706441 and 15262475 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 280706398 and 280706407.

It is not a weakly prime, because it can be changed into another prime (280706443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140353220 + 140353221.

It is an arithmetic number, because the mean of its divisors is an integer number (140353221).

Almost surely, 2^280706441 is an apocalyptic number.

It is an amenable number.

280706441 is a deficient number, since it is larger than the sum of its proper divisors (1).

280706441 is an equidigital number, since it uses as much as digits as its factorization.

280706441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 280706441 is about 16754.2961953047. The cubic root of 280706441 is about 654.7629941035.

The spelling of 280706441 in words is "two hundred eighty million, seven hundred six thousand, four hundred forty-one".