30105399 has 16 divisors (see below), whose sum is σ = 41356800. Its totient is φ = 19471296.

The previous prime is 30105389. The next prime is 30105401. The reversal of 30105399 is 99350103.

It is not a de Polignac number, because 30105399 - 2⁹ = 30104887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30105389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12907 + ... + 15059.

It is an arithmetic number, because the mean of its divisors is an integer number (2584800).

Almost surely, 2^30105399 is an apocalyptic number.

30105399 is a deficient number, since it is larger than the sum of its proper divisors (11251401).

30105399 is a wasteful number, since it uses less digits than its factorization.

30105399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294.

The product of its (nonzero) digits is 3645, while the sum is 30.

The square root of 30105399 is about 5486.8387073068. The cubic root of 30105399 is about 311.0867132748.

The spelling of 30105399 in words is "thirty million, one hundred five thousand, three hundred ninety-nine".