4999018 has 4 divisors (see below), whose sum is σ = 7498530. Its totient is φ = 2499508.

The previous prime is 4998997. The next prime is 4999021. The reversal of 4999018 is 8109994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8109994 = 2 ⋅4054997.

It can be written as a sum of positive squares in only one way, i.e., 4635409 + 363609 = 2153^2 + 603^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 1249753 + ... + 1249756.

Almost surely, 2^4999018 is an apocalyptic number.

4999018 is a deficient number, since it is larger than the sum of its proper divisors (2499512).

4999018 is a wasteful number, since it uses less digits than its factorization.

4999018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499511.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 4999018 is about 2235.8483848419. The cubic root of 4999018 is about 170.9863992922.

The spelling of 4999018 in words is "four million, nine hundred ninety-nine thousand, eighteen".