1844090089 has 2 divisors, whose sum is σ = 1844090090. Its totient is φ = 1844090088.

The previous prime is 1844090071. The next prime is 1844090093. The reversal of 1844090089 is 9800904481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1822606864 + 21483225 = 42692^2 + 4635^2 .

It is a cyclic number.

It is not a de Polignac number, because 1844090089 - 2¹⁷ = 1843959017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1844090009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 922045044 + 922045045.

It is an arithmetic number, because the mean of its divisors is an integer number (922045045).

Almost surely, 2^1844090089 is an apocalyptic number.

It is an amenable number.

1844090089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1844090089 is an equidigital number, since it uses as much as digits as its factorization.

1844090089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 1844090089 is about 42942.8700601159. The cubic root of 1844090089 is about 1226.2924222209.

The spelling of 1844090089 in words is "one billion, eight hundred forty-four million, ninety thousand, eighty-nine".