4028545 has 8 divisors (see below), whose sum is σ = 4864896. Its totient is φ = 3202416.

The previous prime is 4028539. The next prime is 4028561. The reversal of 4028545 is 5458204.

4028545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4028545 - 2¹³ = 4020353 is a prime.

It is a Duffinian 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, 1657 + ... + 3286.

It is an arithmetic number, because the mean of its divisors is an integer number (608112).

Almost surely, 2^4028545 is an apocalyptic number.

It is an amenable number.

4028545 is a deficient number, since it is larger than the sum of its proper divisors (836351).

4028545 is a wasteful number, since it uses less digits than its factorization.

4028545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111.

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

The square root of 4028545 is about 2007.1235637100. The cubic root of 4028545 is about 159.1168135431.

The spelling of 4028545 in words is "four million, twenty-eight thousand, five hundred forty-five".