4304385 has 24 divisors (see below), whose sum is σ = 7646184. Its totient is φ = 2238720.

The previous prime is 4304371. The next prime is 4304389. The reversal of 4304385 is 5834034.

4304385 = T₁₈₂ + T₁₈₃ + ... + T₃₁₆.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7056 + 4297329 = 84^2 + 2073^2 .

It is not a de Polignac number, because 4304385 - 2⁴ = 4304369 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4304389) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 679 + ... + 3011.

It is an arithmetic number, because the mean of its divisors is an integer number (318591).

Almost surely, 2^4304385 is an apocalyptic number.

4304385 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4304385 is a deficient number, since it is larger than the sum of its proper divisors (3341799).

4304385 is a wasteful number, since it uses less digits than its factorization.

4304385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385 (or 2382 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 4304385 is about 2074.7011833033. The cubic root of 4304385 is about 162.6685903166.

The spelling of 4304385 in words is "four million, three hundred four thousand, three hundred eighty-five".