4239938 has 4 divisors (see below), whose sum is σ = 6359910. Its totient is φ = 2119968.

The previous prime is 4239931. The next prime is 4239971. The reversal of 4239938 is 8399324.

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., 4190209 + 49729 = 2047^2 + 223^2 .

It is not an unprimeable number, because it can be changed into a prime (4239931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059983 + ... + 1059986.

Almost surely, 2^4239938 is an apocalyptic number.

4239938 is a deficient number, since it is larger than the sum of its proper divisors (2119972).

4239938 is a wasteful number, since it uses less digits than its factorization.

4239938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119971.

The product of its digits is 46656, while the sum is 38.

The square root of 4239938 is about 2059.1109732115. The cubic root of 4239938 is about 161.8526577792.

The spelling of 4239938 in words is "four million, two hundred thirty-nine thousand, nine hundred thirty-eight".