4538018 has 4 divisors (see below), whose sum is σ = 6807030. Its totient is φ = 2269008.

The previous prime is 4537993. The next prime is 4538033. The reversal of 4538018 is 8108354.

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., 2569609 + 1968409 = 1603^2 + 1403^2 .

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 as a sum of consecutive naturals, namely, 1134503 + ... + 1134506.

Almost surely, 2^4538018 is an apocalyptic number.

4538018 is a deficient number, since it is larger than the sum of its proper divisors (2269012).

4538018 is a wasteful number, since it uses less digits than its factorization.

4538018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269011.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 4538018 is about 2130.2624251486. The cubic root of 4538018 is about 165.5599950430.

The spelling of 4538018 in words is "four million, five hundred thirty-eight thousand, eighteen".