1484390489 has 2 divisors, whose sum is σ = 1484390490. Its totient is φ = 1484390488.

The previous prime is 1484390471. The next prime is 1484390627. The reversal of 1484390489 is 9840934841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1291180489 + 193210000 = 35933^2 + 13900^2 .

It is a cyclic number.

It is not a de Polignac number, because 1484390489 - 2¹⁶ = 1484324953 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1484390459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 742195244 + 742195245.

It is an arithmetic number, because the mean of its divisors is an integer number (742195245).

Almost surely, 2^1484390489 is an apocalyptic number.

It is an amenable number.

1484390489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1484390489 is an equidigital number, since it uses as much as digits as its factorization.

1484390489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 50.

The square root of 1484390489 is about 38527.7885298391. The cubic root of 1484390489 is about 1140.7296265410.

The spelling of 1484390489 in words is "one billion, four hundred eighty-four million, three hundred ninety thousand, four hundred eighty-nine".