4578645 has 8 divisors (see below), whose sum is σ = 7325856. Its totient is φ = 2441936.

The previous prime is 4578643. The next prime is 4578653. The reversal of 4578645 is 5468754.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4578645 - 2¹ = 4578643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4578643) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 152607 + ... + 152636.

It is an arithmetic number, because the mean of its divisors is an integer number (915732).

Almost surely, 2^4578645 is an apocalyptic number.

It is an amenable number.

4578645 is a deficient number, since it is larger than the sum of its proper divisors (2747211).

4578645 is a wasteful number, since it uses less digits than its factorization.

4578645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305251.

The product of its digits is 134400, while the sum is 39.

The square root of 4578645 is about 2139.7768575251. The cubic root of 4578645 is about 166.0525913589.

The spelling of 4578645 in words is "four million, five hundred seventy-eight thousand, six hundred forty-five".