2223722 has 16 divisors (see below), whose sum is σ = 3544800. Its totient is φ = 1043280.

The previous prime is 2223713. The next prime is 2223731. The reversal of 2223722 is 2273222.

It is an interprime number because it is at equal distance from previous prime (2223713) and next prime (2223731).

It is a d-powerful number, because it can be written as 2³ + 2⁷ + 2⁹ + 3⁴ + 7⁶ + 2¹³ + 2²¹ .

It is a junction number, because it is equal to n+sod(n) for n = 2223694 and 2223703.

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, 5072 + ... + 5492.

It is an arithmetic number, because the mean of its divisors is an integer number (221550).

2^2223722 is an apocalyptic number.

2223722 is a deficient number, since it is larger than the sum of its proper divisors (1321078).

2223722 is a wasteful number, since it uses less digits than its factorization.

2223722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581.

The product of its digits is 672, while the sum is 20.

The square root of 2223722 is about 1491.2149409123. The cubic root of 2223722 is about 130.5249385945.

Adding to 2223722 its reverse (2273222), we get a palindrome (4496944).

The spelling of 2223722 in words is "two million, two hundred twenty-three thousand, seven hundred twenty-two".