1005422389 has 2 divisors, whose sum is σ = 1005422390. Its totient is φ = 1005422388.

The previous prime is 1005422333. The next prime is 1005422401. The reversal of 1005422389 is 9832245001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 988033489 + 17388900 = 31433^2 + 4170^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005422389 - 2¹³ = 1005414197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005422309) 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, 502711194 + 502711195.

It is an arithmetic number, because the mean of its divisors is an integer number (502711195).

Almost surely, 2^1005422389 is an apocalyptic number.

It is an amenable number.

1005422389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005422389 is an equidigital number, since it uses as much as digits as its factorization.

1005422389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1005422389 is about 31708.3961909145. The cubic root of 1005422389 is about 1001.8042058835.

The spelling of 1005422389 in words is "one billion, five million, four hundred twenty-two thousand, three hundred eighty-nine".