30406429 has 2 divisors, whose sum is σ = 30406430. Its totient is φ = 30406428.

The previous prime is 30406427. The next prime is 30406433. The reversal of 30406429 is 92460403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28111204 + 2295225 = 5302^2 + 1515^2 .

It is a cyclic number.

It is not a de Polignac number, because 30406429 - 2¹ = 30406427 is a prime.

Together with 30406427, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 30406397 and 30406406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30406427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15203214 + 15203215.

It is an arithmetic number, because the mean of its divisors is an integer number (15203215).

Almost surely, 2^30406429 is an apocalyptic number.

It is an amenable number.

30406429 is a deficient number, since it is larger than the sum of its proper divisors (1).

30406429 is an equidigital number, since it uses as much as digits as its factorization.

30406429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 30406429 is about 5514.2024808670. The cubic root of 30406429 is about 312.1201494572.

The spelling of 30406429 in words is "thirty million, four hundred six thousand, four hundred twenty-nine".