4039045 has 4 divisors (see below), whose sum is σ = 4846860. Its totient is φ = 3231232.

The previous prime is 4039043. The next prime is 4039051. The reversal of 4039045 is 5409304.

4039045 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 715716 + 3323329 = 846^2 + 1823^2 .

It is a cyclic number.

It is not a de Polignac number, because 4039045 - 2¹ = 4039043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4039043) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 403900 + ... + 403909.

It is an arithmetic number, because the mean of its divisors is an integer number (1211715).

Almost surely, 2^4039045 is an apocalyptic number.

It is an amenable number.

4039045 is a deficient number, since it is larger than the sum of its proper divisors (807815).

4039045 is an equidigital number, since it uses as much as digits as its factorization.

4039045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807814.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 4039045 is about 2009.7375450541. The cubic root of 4039045 is about 159.2549343049.

The spelling of 4039045 in words is "four million, thirty-nine thousand, forty-five".