64330305 has 16 divisors (see below), whose sum is σ = 110846400. Its totient is φ = 31670208.

The previous prime is 64330297. The next prime is 64330319. The reversal of 64330305 is 50303346.

64330305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64330305 - 2³ = 64330297 is a prime.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 164755 + ... + 165144.

It is an arithmetic number, because the mean of its divisors is an integer number (6927900).

Almost surely, 2^64330305 is an apocalyptic number.

64330305 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64330305 is a deficient number, since it is larger than the sum of its proper divisors (46516095).

64330305 is a wasteful number, since it uses less digits than its factorization.

64330305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329920.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 64330305 is about 8020.6174949314. The cubic root of 64330305 is about 400.6869549735.

The spelling of 64330305 in words is "sixty-four million, three hundred thirty thousand, three hundred five".