2223630 has 48 divisors (see below), whose sum is σ = 5975424. Its totient is φ = 573120.

The previous prime is 2223623. The next prime is 2223631. The reversal of 2223630 is 363222.

2223630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 2³ + 2⁵ + 2¹⁹ + 3 + 6⁸ + 3⁹ + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223631) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2392 + ... + 3188.

It is an arithmetic number, because the mean of its divisors is an integer number (124488).

2^2223630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2223630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2987712).

2223630 is an abundant number, since it is smaller than the sum of its proper divisors (3751794).

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

2223630 is a wasteful number, since it uses less digits than its factorization.

2223630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2223630 is about 1491.1840932628. The cubic root of 2223630 is about 130.5231385404.

Adding to 2223630 its reverse (363222), we get a palindrome (2586852).

The spelling of 2223630 in words is "two million, two hundred twenty-three thousand, six hundred thirty".