4493938 has 4 divisors (see below), whose sum is σ = 6740910. Its totient is φ = 2246968.

The previous prime is 4493921. The next prime is 4493939. The reversal of 4493938 is 8393944.

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., 4149369 + 344569 = 2037^2 + 587^2 .

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 a self number, because there is not a number n which added to its sum of digits gives 4493938.

It is not an unprimeable number, because it can be changed into a prime (4493939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1123483 + ... + 1123486.

Almost surely, 2^4493938 is an apocalyptic number.

4493938 is a deficient number, since it is larger than the sum of its proper divisors (2246972).

4493938 is a wasteful number, since it uses less digits than its factorization.

4493938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246971.

The product of its digits is 93312, while the sum is 40.

The square root of 4493938 is about 2119.8910349355. The cubic root of 4493938 is about 165.0221947493.

The spelling of 4493938 in words is "four million, four hundred ninety-three thousand, nine hundred thirty-eight".