2223450 has 84 divisors (see below), whose sum is σ = 6302238. Its totient is φ = 583200.

The previous prime is 2223449. The next prime is 2223451. The reversal of 2223450 is 543222.

It is an interprime number because it is at equal distance from previous prime (2223449) and next prime (2223451).

It can be written as a sum of positive squares in 3 ways, for example, as 998001 + 1225449 = 999^2 + 1107^2 .

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 2¹⁰ + 2¹⁶ + 2²¹ + 3¹⁰ + 4³ + 5⁴ + 0 .

It is not an unprimeable number, because it can be changed into a prime (2223451) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 36420 + ... + 36480.

2^2223450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2223450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3151119).

2223450 is an abundant number, since it is smaller than the sum of its proper divisors (4078788).

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

2223450 is an equidigital number, since it uses as much as digits as its factorization.

2223450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2223450 is about 1491.1237373203. The cubic root of 2223450 is about 130.5196165517.

Adding to 2223450 its reverse (543222), we get a palindrome (2766672).

The spelling of 2223450 in words is "two million, two hundred twenty-three thousand, four hundred fifty".