30442829 has 4 divisors (see below), whose sum is σ = 31017276. Its totient is φ = 29868384.

The previous prime is 30442813. The next prime is 30442831. The reversal of 30442829 is 92824403.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24730729 + 5712100 = 4973^2 + 2390^2 .

It is a cyclic number.

It is not a de Polignac number, because 30442829 - 2⁴ = 30442813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30442795 and 30442804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30442859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287144 + ... + 287249.

It is an arithmetic number, because the mean of its divisors is an integer number (7754319).

Almost surely, 2^30442829 is an apocalyptic number.

It is an amenable number.

30442829 is a deficient number, since it is larger than the sum of its proper divisors (574447).

30442829 is an equidigital number, since it uses as much as digits as its factorization.

30442829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574446.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 30442829 is about 5517.5020616217. The cubic root of 30442829 is about 312.2446477215.

The spelling of 30442829 in words is "thirty million, four hundred forty-two thousand, eight hundred twenty-nine".