1814334421 has 2 divisors, whose sum is σ = 1814334422. Its totient is φ = 1814334420.

The previous prime is 1814334413. The next prime is 1814334437. The reversal of 1814334421 is 1244334181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1311453796 + 502880625 = 36214^2 + 22425^2 .

It is a cyclic number.

It is not a de Polignac number, because 1814334421 - 2³ = 1814334413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1814334121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 907167210 + 907167211.

It is an arithmetic number, because the mean of its divisors is an integer number (907167211).

Almost surely, 2^1814334421 is an apocalyptic number.

It is an amenable number.

1814334421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1814334421 is an equidigital number, since it uses as much as digits as its factorization.

1814334421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 31.

The square root of 1814334421 is about 42595.0046484327. The cubic root of 1814334421 is about 1219.6609334998.

The spelling of 1814334421 in words is "one billion, eight hundred fourteen million, three hundred thirty-four thousand, four hundred twenty-one".