19834429 has 2 divisors, whose sum is σ = 19834430. Its totient is φ = 19834428.

The previous prime is 19834411. The next prime is 19834501. The reversal of 19834429 is 92443891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13468900 + 6365529 = 3670^2 + 2523^2 .

It is a cyclic number.

It is not a de Polignac number, because 19834429 - 2⁷ = 19834301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19834391 and 19834400.

It is a congruent number.

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, 9917214 + 9917215.

It is an arithmetic number, because the mean of its divisors is an integer number (9917215).

Almost surely, 2^19834429 is an apocalyptic number.

It is an amenable number.

19834429 is a deficient number, since it is larger than the sum of its proper divisors (1).

19834429 is an equidigital number, since it uses as much as digits as its factorization.

19834429 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 19834429 is about 4453.5860831469. The cubic root of 19834429 is about 270.6906370242.

The spelling of 19834429 in words is "nineteen million, eight hundred thirty-four thousand, four hundred twenty-nine".