4545020 has 12 divisors (see below), whose sum is σ = 9544584. Its totient is φ = 1818000.

The previous prime is 4545017. The next prime is 4545031. The reversal of 4545020 is 205454.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 227251 = 4545020 / (4 + 5 + 4 + 5 + 0 + 2 + 0).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4544983 and 4545001.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 113606 + ... + 113645.

It is an arithmetic number, because the mean of its divisors is an integer number (795382).

Almost surely, 2^4545020 is an apocalyptic number.

It is an amenable number.

4545020 is an abundant number, since it is smaller than the sum of its proper divisors (4999564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4545020 is a wasteful number, since it uses less digits than its factorization.

4545020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227260 (or 227258 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 4545020 is about 2131.9052511779. The cubic root of 4545020 is about 165.6451023423.

The spelling of 4545020 in words is "four million, five hundred forty-five thousand, twenty".