19424329 has 2 divisors, whose sum is σ = 19424330. Its totient is φ = 19424328.

The previous prime is 19424309. The next prime is 19424357. The reversal of 19424329 is 92342491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17015625 + 2408704 = 4125^2 + 1552^2 .

It is a cyclic number.

It is not a de Polignac number, because 19424329 - 2¹⁷ = 19293257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19424294 and 19424303.

It is not a weakly prime, because it can be changed into another prime (19424309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9712164 + 9712165.

It is an arithmetic number, because the mean of its divisors is an integer number (9712165).

Almost surely, 2^19424329 is an apocalyptic number.

It is an amenable number.

19424329 is a deficient number, since it is larger than the sum of its proper divisors (1).

19424329 is an equidigital number, since it uses as much as digits as its factorization.

19424329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 19424329 is about 4407.3040512313. The cubic root of 19424329 is about 268.8120142450.

The spelling of 19424329 in words is "nineteen million, four hundred twenty-four thousand, three hundred twenty-nine".