4018938 has 32 divisors (see below), whose sum is σ = 10022400. Its totient is φ = 1043760.

The previous prime is 4018921. The next prime is 4018979. The reversal of 4018938 is 8398104.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 4018899 and 4018908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3888 + ... + 4811.

It is an arithmetic number, because the mean of its divisors is an integer number (313200).

Almost surely, 2^4018938 is an apocalyptic number.

4018938 is an abundant number, since it is smaller than the sum of its proper divisors (6003462).

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

4018938 is a wasteful number, since it uses less digits than its factorization.

4018938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8722.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 4018938 is about 2004.7289093541. The cubic root of 4018938 is about 158.9902292164.

It can be divided in two parts, 401 and 8938, that added together give a palindrome (9339).

The spelling of 4018938 in words is "four million, eighteen thousand, nine hundred thirty-eight".