30344905 has 8 divisors (see below), whose sum is σ = 36443592. Its totient is φ = 24256128.

The previous prime is 30344891. The next prime is 30344911. The reversal of 30344905 is 50944303.

It can be written as a sum of positive squares in 4 ways, for example, as 16064064 + 14280841 = 4008^2 + 3779^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30344905 - 2⁷ = 30344777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9829 + ... + 12541.

It is an arithmetic number, because the mean of its divisors is an integer number (4555449).

Almost surely, 2^30344905 is an apocalyptic number.

It is an amenable number.

30344905 is a deficient number, since it is larger than the sum of its proper divisors (6098687).

30344905 is a wasteful number, since it uses less digits than its factorization.

30344905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4955.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 30344905 is about 5508.6209708057. The cubic root of 30344905 is about 311.9094939378.

The spelling of 30344905 in words is "thirty million, three hundred forty-four thousand, nine hundred five".