4565385 has 48 divisors (see below), whose sum is σ = 9030528. Its totient is φ = 2112000.

The previous prime is 4565381. The next prime is 4565399. The reversal of 4565385 is 5835654.

It is not a de Polignac number, because 4565385 - 2² = 4565381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4565381) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11185 + ... + 11585.

It is an arithmetic number, because the mean of its divisors is an integer number (188136).

Almost surely, 2^4565385 is an apocalyptic number.

4565385 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4565385 is a deficient number, since it is larger than the sum of its proper divisors (4465143).

4565385 is a wasteful number, since it uses less digits than its factorization.

4565385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 443 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 4565385 is about 2136.6761570252. The cubic root of 4565385 is about 165.8921373124.

It can be divided in two parts, 4565 and 385, that added together give a triangular number (4950 = T₉₉).

The spelling of 4565385 in words is "four million, five hundred sixty-five thousand, three hundred eighty-five".