4520845 has 16 divisors (see below), whose sum is σ = 6369408. Its totient is φ = 3015360.

The previous prime is 4520843. The next prime is 4520849. The reversal of 4520845 is 5480254.

It is not a de Polignac number, because 4520845 - 2¹ = 4520843 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4520843) 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 15 ways as a sum of consecutive naturals, for example, 451 + ... + 3040.

It is an arithmetic number, because the mean of its divisors is an integer number (398088).

Almost surely, 2^4520845 is an apocalyptic number.

It is an amenable number.

4520845 is a deficient number, since it is larger than the sum of its proper divisors (1848563).

4520845 is a wasteful number, since it uses less digits than its factorization.

4520845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 4520845 is about 2126.2278805434. The cubic root of 4520845 is about 165.3508908506.

The spelling of 4520845 in words is "four million, five hundred twenty thousand, eight hundred forty-five".