4019938 has 8 divisors (see below), whose sum is σ = 6493788. Its totient is φ = 1855344.

The previous prime is 4019909. The next prime is 4019993. The reversal of 4019938 is 8399104.

It can be written as a sum of positive squares in 2 ways, for example, as 3250809 + 769129 = 1803^2 + 877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 13.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77281 + ... + 77332.

Almost surely, 2^4019938 is an apocalyptic number.

4019938 is a deficient number, since it is larger than the sum of its proper divisors (2473850).

4019938 is a wasteful number, since it uses less digits than its factorization.

4019938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154628.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 4019938 is about 2004.9783041220. The cubic root of 4019938 is about 159.0034148760.

The spelling of 4019938 in words is "four million, nineteen thousand, nine hundred thirty-eight".