2223606 has 32 divisors (see below), whose sum is σ = 5545728. Its totient is φ = 577440.

The previous prime is 2223587. The next prime is 2223607. The reversal of 2223606 is 6063222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223607) 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, 1945 + ... + 2868.

It is an arithmetic number, because the mean of its divisors is an integer number (173304).

2^2223606 is an apocalyptic number.

2223606 is an abundant number, since it is smaller than the sum of its proper divisors (3322122).

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

2223606 is a wasteful number, since it uses less digits than its factorization.

2223606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4836.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2223606 is about 1491.1760459449. The cubic root of 2223606 is about 130.5226689529.

Adding to 2223606 its reverse (6063222), we get a palindrome (8286828).

It can be divided in two parts, 222 and 3606, that added together give a triangular number (3828 = T₈₇).

The spelling of 2223606 in words is "two million, two hundred twenty-three thousand, six hundred six".