4485645 has 32 divisors (see below), whose sum is σ = 8064000. Its totient is φ = 2365632.

The previous prime is 4485643. The next prime is 4485661. The reversal of 4485645 is 5465844.

4485645 is a `hidden beast` number, since 4 + 4 + 8 + 5 + 645 = 666.

It is not a de Polignac number, because 4485645 - 2¹ = 4485643 is a prime.

It is a super-3 number, since 3×4485645³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4485643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20004 + ... + 20226.

It is an arithmetic number, because the mean of its divisors is an integer number (252000).

Almost surely, 2^4485645 is an apocalyptic number.

4485645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4485645 is a deficient number, since it is larger than the sum of its proper divisors (3578355).

4485645 is a wasteful number, since it uses less digits than its factorization.

4485645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 380 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 4485645 is about 2117.9341349532. The cubic root of 4485645 is about 164.9206229770.

The spelling of 4485645 in words is "four million, four hundred eighty-five thousand, six hundred forty-five".