1814400073 has 2 divisors, whose sum is σ = 1814400074. Its totient is φ = 1814400072.

The previous prime is 1814400047. The next prime is 1814400083. The reversal of 1814400073 is 3700044181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1114691769 + 699708304 = 33387^2 + 26452^2 .

It is an emirp because it is prime and its reverse (3700044181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1814400073 - 2¹⁷ = 1814269001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1814400083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 907200036 + 907200037.

It is an arithmetic number, because the mean of its divisors is an integer number (907200037).

Almost surely, 2^1814400073 is an apocalyptic number.

It is an amenable number.

1814400073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1814400073 is an equidigital number, since it uses as much as digits as its factorization.

1814400073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1814400073 is about 42595.7752952097. The cubic root of 1814400073 is about 1219.6756445352.

The spelling of 1814400073 in words is "one billion, eight hundred fourteen million, four hundred thousand, seventy-three".