4018338 has 12 divisors (see below), whose sum is σ = 8706438. Its totient is φ = 1339440.

The previous prime is 4018337. The next prime is 4018349. The reversal of 4018338 is 8338104.

It can be written as a sum of positive squares in only one way, i.e., 3790809 + 227529 = 1947^2 + 477^2 .

It is a super-2 number, since 2×4018338² = 32294080564488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4018337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111603 + ... + 111638.

Almost surely, 2^4018338 is an apocalyptic number.

4018338 is an abundant number, since it is smaller than the sum of its proper divisors (4688100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4018338 is a wasteful number, since it uses less digits than its factorization.

4018338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223249 (or 223246 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 4018338 is about 2004.5792576000. The cubic root of 4018338 is about 158.9823167708.

It can be divided in two parts, 4018 and 338, that added together give a square (4356 = 66²).

The spelling of 4018338 in words is "four million, eighteen thousand, three hundred thirty-eight".