2238220 has 48 divisors (see below), whose sum is σ = 5171040. Its totient is φ = 809984.

The previous prime is 2238217. The next prime is 2238233. The reversal of 2238220 is 228322.

It is a zygodrome in base 6.

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, 9747 + ... + 9973.

It is an arithmetic number, because the mean of its divisors is an integer number (107730).

2^2238220 is an apocalyptic number.

2238220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2238220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2585520).

2238220 is an abundant number, since it is smaller than the sum of its proper divisors (2932820).

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

2238220 is a wasteful number, since it uses less digits than its factorization.

2238220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2238220 is about 1496.0681802645. The cubic root of 2238220 is about 130.8079854969.

The spelling of 2238220 in words is "two million, two hundred thirty-eight thousand, two hundred twenty".