45028705 has 4 divisors (see below), whose sum is σ = 54034452. Its totient is φ = 36022960.

The previous prime is 45028693. The next prime is 45028759. The reversal of 45028705 is 50782054.

45028705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9709456 + 35319249 = 3116^2 + 5943^2 .

It is not a de Polignac number, because 45028705 - 2²⁵ = 11474273 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 4502866 + ... + 4502875.

It is an arithmetic number, because the mean of its divisors is an integer number (13508613).

Almost surely, 2^45028705 is an apocalyptic number.

It is an amenable number.

45028705 is a deficient number, since it is larger than the sum of its proper divisors (9005747).

45028705 is an equidigital number, since it uses as much as digits as its factorization.

45028705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9005746.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 45028705 is about 6710.3431357867. The cubic root of 45028705 is about 355.7649444641.

The spelling of 45028705 in words is "forty-five million, twenty-eight thousand, seven hundred five".