1834424989 has 2 divisors, whose sum is σ = 1834424990. Its totient is φ = 1834424988.

The previous prime is 1834424981. The next prime is 1834425023. The reversal of 1834424989 is 9894244381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1284147225 + 550277764 = 35835^2 + 23458^2 .

It is a cyclic number.

It is not a de Polignac number, because 1834424989 - 2³ = 1834424981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1834424981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 917212494 + 917212495.

It is an arithmetic number, because the mean of its divisors is an integer number (917212495).

Almost surely, 2^1834424989 is an apocalyptic number.

It is an amenable number.

1834424989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1834424989 is an equidigital number, since it uses as much as digits as its factorization.

1834424989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1990656, while the sum is 52.

The square root of 1834424989 is about 42830.1878235433. The cubic root of 1834424989 is about 1224.1462859765.

The spelling of 1834424989 in words is "one billion, eight hundred thirty-four million, four hundred twenty-four thousand, nine hundred eighty-nine".