528407449 has 2 divisors, whose sum is σ = 528407450. Its totient is φ = 528407448.

The previous prime is 528407443. The next prime is 528407501. The reversal of 528407449 is 944704825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 494395225 + 34012224 = 22235^2 + 5832^2 .

It is a cyclic number.

It is not a de Polignac number, because 528407449 - 2³ = 528407441 is a prime.

It is not a weakly prime, because it can be changed into another prime (528407441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264203724 + 264203725.

It is an arithmetic number, because the mean of its divisors is an integer number (264203725).

Almost surely, 2^528407449 is an apocalyptic number.

It is an amenable number.

528407449 is a deficient number, since it is larger than the sum of its proper divisors (1).

528407449 is an equidigital number, since it uses as much as digits as its factorization.

528407449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 528407449 is about 22987.1148472356. The cubic root of 528407449 is about 808.4558546087.

The spelling of 528407449 in words is "five hundred twenty-eight million, four hundred seven thousand, four hundred forty-nine".