10309305 has 32 divisors (see below), whose sum is σ = 17677440. Its totient is φ = 5114880.

The previous prime is 10309289. The next prime is 10309319. The reversal of 10309305 is 50390301.

It is not a de Polignac number, because 10309305 - 2⁴ = 10309289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17089 + ... + 17681.

It is an arithmetic number, because the mean of its divisors is an integer number (552420).

Almost surely, 2^10309305 is an apocalyptic number.

10309305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10309305 is a deficient number, since it is larger than the sum of its proper divisors (7368135).

10309305 is a wasteful number, since it uses less digits than its factorization.

10309305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681.

The product of its (nonzero) digits is 405, while the sum is 21.

The square root of 10309305 is about 3210.8106453044. The cubic root of 10309305 is about 217.6422111311.

Adding to 10309305 its reverse (50390301), we get a palindrome (60699606).

The spelling of 10309305 in words is "ten million, three hundred nine thousand, three hundred five".