2223572 has 24 divisors (see below), whose sum is σ = 4265352. Its totient is φ = 1008000.

The previous prime is 2223563. The next prime is 2223581. The reversal of 2223572 is 2753222.

It is an interprime number because it is at equal distance from previous prime (2223563) and next prime (2223581).

It can be written as a sum of positive squares in 4 ways, for example, as 21316 + 2202256 = 146^2 + 1484^2 .

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2822 + ... + 3522.

It is an arithmetic number, because the mean of its divisors is an integer number (177723).

2^2223572 is an apocalyptic number.

It is an amenable number.

2223572 is a deficient number, since it is larger than the sum of its proper divisors (2041780).

2223572 is a wasteful number, since it uses less digits than its factorization.

2223572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779 (or 777 counting only the distinct ones).

The product of its digits is 1680, while the sum is 23.

The square root of 2223572 is about 1491.1646455036. The cubic root of 2223572 is about 130.5220036981.

Adding to 2223572 its reverse (2753222), we get a palindrome (4976794).

The spelling of 2223572 in words is "two million, two hundred twenty-three thousand, five hundred seventy-two".