1628580241 has 2 divisors, whose sum is σ = 1628580242. Its totient is φ = 1628580240.

The previous prime is 1628580211. The next prime is 1628580253. The reversal of 1628580241 is 1420858261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 986211216 + 642369025 = 31404^2 + 25345^2 .

It is an emirp because it is prime and its reverse (1420858261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1628580241 - 2¹⁹ = 1628055953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1628580241.

It is not a weakly prime, because it can be changed into another prime (1628580211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 814290120 + 814290121.

It is an arithmetic number, because the mean of its divisors is an integer number (814290121).

Almost surely, 2^1628580241 is an apocalyptic number.

It is an amenable number.

1628580241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1628580241 is an equidigital number, since it uses as much as digits as its factorization.

1628580241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 1628580241 is about 40355.6717327317. The cubic root of 1628580241 is about 1176.5301305175.

The spelling of 1628580241 in words is "one billion, six hundred twenty-eight million, five hundred eighty thousand, two hundred forty-one".