2267220 has 48 divisors (see below), whose sum is σ = 6572160. Its totient is φ = 583296.

The previous prime is 2267219. The next prime is 2267227. The reversal of 2267220 is 227622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2267227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1089 + ... + 2391.

It is an arithmetic number, because the mean of its divisors is an integer number (136920).

2^2267220 is an apocalyptic number.

2267220 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 2267220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3286080).

2267220 is an abundant number, since it is smaller than the sum of its proper divisors (4304940).

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

2267220 is a wasteful number, since it uses less digits than its factorization.

2267220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 1342 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 2267220 is about 1505.7290592932. The cubic root of 2267220 is about 131.3705106313.

The spelling of 2267220 in words is "two million, two hundred sixty-seven thousand, two hundred twenty".