1662224 has 10 divisors (see below), whose sum is σ = 3220590. Its totient is φ = 831104.

The previous prime is 1662223. The next prime is 1662229. The reversal of 1662224 is 4222661.

It can be written as a sum of positive squares in only one way, i.e., 1517824 + 144400 = 1232^2 + 380^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1662224.

It is not an unprimeable number, because it can be changed into a prime (1662223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51929 + ... + 51960.

It is an arithmetic number, because the mean of its divisors is an integer number (322059).

2^1662224 is an apocalyptic number.

It is an amenable number.

1662224 is a deficient number, since it is larger than the sum of its proper divisors (1558366).

1662224 is a wasteful number, since it uses less digits than its factorization.

1662224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103897 (or 103891 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 1662224 is about 1289.2726631710. The cubic root of 1662224 is about 118.4576691308.

Adding to 1662224 its reverse (4222661), we get a palindrome (5884885).

The spelling of 1662224 in words is "one million, six hundred sixty-two thousand, two hundred twenty-four".