4018356 has 48 divisors (see below), whose sum is σ = 10785600. Its totient is φ = 1292256.

The previous prime is 4018349. The next prime is 4018361. The reversal of 4018356 is 6538104.

4018356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4018356² = 32294369885472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2491 + ... + 3773.

It is an arithmetic number, because the mean of its divisors is an integer number (224700).

Almost surely, 2^4018356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4018356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5392800).

4018356 is an abundant number, since it is smaller than the sum of its proper divisors (6767244).

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

4018356 is a wasteful number, since it uses less digits than its factorization.

4018356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325 (or 1317 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 4018356 is about 2004.5837473151. The cubic root of 4018356 is about 158.9825541556.

The spelling of 4018356 in words is "four million, eighteen thousand, three hundred fifty-six".