4545820 has 24 divisors (see below), whose sum is σ = 9805824. Its totient is φ = 1768896.

The previous prime is 4545799. The next prime is 4545833. The reversal of 4545820 is 285454.

4545820 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2332 + ... + 3811.

It is an arithmetic number, because the mean of its divisors is an integer number (408576).

Almost surely, 2^4545820 is an apocalyptic number.

It is an amenable number.

4545820 is an abundant number, since it is smaller than the sum of its proper divisors (5260004).

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

4545820 is a wasteful number, since it uses less digits than its factorization.

4545820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6189 (or 6187 counting only the distinct ones).

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

The square root of 4545820 is about 2132.0928685214. The cubic root of 4545820 is about 165.6548205472.

The spelling of 4545820 in words is "four million, five hundred forty-five thousand, eight hundred twenty".