4028567841 has 9 divisors (see below), whose sum is σ = 5819317491. Its totient is φ = 2685584952.

The previous prime is 4028567833. The next prime is 4028567863. The reversal of 4028567841 is 1487658204.

The square root of 4028567841 is 63471.

It is a perfect power (a square), and thus also a powerful number.

4028567841 is a `hidden beast` number, since 4 + 0 + 2 + 8 + 567 + 84 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 109307025 + 3919260816 = 10455^2 + 62604^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 4028567841 - 2³ = 4028567833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4028577841) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 179835 + ... + 200991.

Almost surely, 2^4028567841 is an apocalyptic number.

4028567841 is the 63471-st square number.

4028567841 is the 31736-th centered octagonal number.

It is an amenable number.

4028567841 is a deficient number, since it is larger than the sum of its proper divisors (1790749650).

4028567841 is an frugal number, since it uses more digits than its factorization.

4028567841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42320 (or 21160 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The cubic root of 4028567841 is about 1591.1711426210.

The spelling of 4028567841 in words is "four billion, twenty-eight million, five hundred sixty-seven thousand, eight hundred forty-one".