1722244 has 12 divisors (see below), whose sum is σ = 3023244. Its totient is φ = 858464.

The previous prime is 1722241. The next prime is 1722251. The reversal of 1722244 is 4422271.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 129600 + 1592644 = 360^2 + 1262^2 .

It is a super-2 number, since 2×1722244² = 5932248791072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1722241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1842 + ... + 2614.

It is an arithmetic number, because the mean of its divisors is an integer number (251937).

2^1722244 is an apocalyptic number.

It is an amenable number.

1722244 is a deficient number, since it is larger than the sum of its proper divisors (1301000).

1722244 is a wasteful number, since it uses less digits than its factorization.

1722244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334 (or 1332 counting only the distinct ones).

The product of its digits is 896, while the sum is 22.

The square root of 1722244 is about 1312.3429429840. The cubic root of 1722244 is about 119.8666110424.

The spelling of 1722244 in words is "one million, seven hundred twenty-two thousand, two hundred forty-four".