4068538 has 4 divisors (see below), whose sum is σ = 6102810. Its totient is φ = 2034268.

The previous prime is 4068529. The next prime is 4068541. The reversal of 4068538 is 8358604.

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

It can be written as a sum of positive squares in only one way, i.e., 3790809 + 277729 = 1947^2 + 527^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1017133 + ... + 1017136.

Almost surely, 2^4068538 is an apocalyptic number.

4068538 is a deficient number, since it is larger than the sum of its proper divisors (2034272).

4068538 is a wasteful number, since it uses less digits than its factorization.

4068538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034271.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 4068538 is about 2017.0617243902. The cubic root of 4068538 is about 159.6416197468.

The spelling of 4068538 in words is "four million, sixty-eight thousand, five hundred thirty-eight".