30208429 has 2 divisors, whose sum is σ = 30208430. Its totient is φ = 30208428.

The previous prime is 30208421. The next prime is 30208457. The reversal of 30208429 is 92480203.

It is an a-pointer prime, because the next prime (30208457) can be obtained adding 30208429 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21178404 + 9030025 = 4602^2 + 3005^2 .

It is an emirp because it is prime and its reverse (92480203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30208429 - 2³ = 30208421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30208397 and 30208406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30208421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15104214 + 15104215.

It is an arithmetic number, because the mean of its divisors is an integer number (15104215).

Almost surely, 2^30208429 is an apocalyptic number.

It is an amenable number.

30208429 is a deficient number, since it is larger than the sum of its proper divisors (1).

30208429 is an equidigital number, since it uses as much as digits as its factorization.

30208429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 30208429 is about 5496.2195189057. The cubic root of 30208429 is about 311.4411875703.

It can be divided in two parts, 3020 and 8429, that added together give a square (11449 = 107²).

The spelling of 30208429 in words is "thirty million, two hundred eight thousand, four hundred twenty-nine".