2018226 has 32 divisors (see below), whose sum is σ = 4775040. Its totient is φ = 556416.

The previous prime is 2018183. The next prime is 2018249. The reversal of 2018226 is 6228102.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a zygodrome 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 15 ways as a sum of consecutive naturals, for example, 390 + ... + 2046.

It is an arithmetic number, because the mean of its divisors is an integer number (149220).

2^2018226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2018226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2387520).

2018226 is an abundant number, since it is smaller than the sum of its proper divisors (2756814).

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

2018226 is a wasteful number, since it uses less digits than its factorization.

2018226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2018226 is about 1420.6428122508. The cubic root of 2018226 is about 126.3736702755.

The spelling of 2018226 in words is "two million, eighteen thousand, two hundred twenty-six".