19834249 has 2 divisors, whose sum is σ = 19834250. Its totient is φ = 19834248.

The previous prime is 19834237. The next prime is 19834301. The reversal of 19834249 is 94243891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11102224 + 8732025 = 3332^2 + 2955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19834249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19834229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9917124 + 9917125.

It is an arithmetic number, because the mean of its divisors is an integer number (9917125).

Almost surely, 2^19834249 is an apocalyptic number.

It is an amenable number.

19834249 is a deficient number, since it is larger than the sum of its proper divisors (1).

19834249 is an equidigital number, since it uses as much as digits as its factorization.

19834249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 19834249 is about 4453.5658746672. The cubic root of 19834249 is about 270.6898181709.

The spelling of 19834249 in words is "nineteen million, eight hundred thirty-four thousand, two hundred forty-nine".