1842244993 has 2 divisors, whose sum is σ = 1842244994. Its totient is φ = 1842244992.

The previous prime is 1842244991. The next prime is 1842245033. The reversal of 1842244993 is 3994422481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1800474624 + 41770369 = 42432^2 + 6463^2 .

It is a cyclic number.

It is not a de Polignac number, because 1842244993 - 2¹ = 1842244991 is a prime.

It is a super-2 number, since 2×1842244993² = 6787733228467140098, which contains 22 as substring.

Together with 1842244991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1842244991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 921122496 + 921122497.

It is an arithmetic number, because the mean of its divisors is an integer number (921122497).

Almost surely, 2^1842244993 is an apocalyptic number.

It is an amenable number.

1842244993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1842244993 is an equidigital number, since it uses as much as digits as its factorization.

1842244993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 46.

The square root of 1842244993 is about 42921.3815364790. The cubic root of 1842244993 is about 1225.8832986290.

The spelling of 1842244993 in words is "one billion, eight hundred forty-two million, two hundred forty-four thousand, nine hundred ninety-three".