1828840243 has 2 divisors, whose sum is σ = 1828840244. Its totient is φ = 1828840242.

The previous prime is 1828840201. The next prime is 1828840249. The reversal of 1828840243 is 3420488281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1828840243 - 2²⁹ = 1291969331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1828840196 and 1828840205.

It is not a weakly prime, because it can be changed into another prime (1828840249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 914420121 + 914420122.

It is an arithmetic number, because the mean of its divisors is an integer number (914420122).

Almost surely, 2^1828840243 is an apocalyptic number.

1828840243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1828840243 is an equidigital number, since it uses as much as digits as its factorization.

1828840243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98304, while the sum is 40.

The square root of 1828840243 is about 42764.9417513926. The cubic root of 1828840243 is about 1222.9027545106.

The spelling of 1828840243 in words is "one billion, eight hundred twenty-eight million, eight hundred forty thousand, two hundred forty-three".