3998338 has 8 divisors (see below), whose sum is σ = 6052860. Its totient is φ = 1980720.

The previous prime is 3998333. The next prime is 3998339. The reversal of 3998338 is 8338993.

It can be written as a sum of positive squares in 2 ways, for example, as 3932289 + 66049 = 1983^2 + 257^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 3998294 and 3998303.

It is not an unprimeable number, because it can be changed into a prime (3998333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8953 + ... + 9388.

Almost surely, 2^3998338 is an apocalyptic number.

3998338 is a deficient number, since it is larger than the sum of its proper divisors (2054522).

3998338 is a wasteful number, since it uses less digits than its factorization.

3998338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18452.

The product of its digits is 139968, while the sum is 43.

The square root of 3998338 is about 1999.5844568310. The cubic root of 3998338 is about 158.7181166466.

The spelling of 3998338 in words is "three million, nine hundred ninety-eight thousand, three hundred thirty-eight".