2223612 has 30 divisors (see below), whose sum is σ = 5813808. Its totient is φ = 741096.

The previous prime is 2223607. The next prime is 2223623. The reversal of 2223612 is 2163222.

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

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 2³ + 2⁴ + 2¹⁸ + 3⁹ + 6⁸ + 1 + 2¹⁸ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3108 + ... + 3755.

2^2223612 is an apocalyptic number.

It is an amenable number.

2223612 is an abundant number, since it is smaller than the sum of its proper divisors (3590196).

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

2223612 is a wasteful number, since it uses less digits than its factorization.

2223612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6879 (or 6868 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 2223612 is about 1491.1780577785. The cubic root of 2223612 is about 130.5227863501.

Adding to 2223612 its reverse (2163222), we get a palindrome (4386834).

The spelling of 2223612 in words is "two million, two hundred twenty-three thousand, six hundred twelve".