1662222 has 32 divisors (see below), whose sum is σ = 3538080. Its totient is φ = 519680.

The previous prime is 1662217. The next prime is 1662223. The reversal of 1662222 is 2222661.

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

1662222 is a modest number, since divided by 2222 gives 166 as remainder.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7018 + ... + 7250.

It is an arithmetic number, because the mean of its divisors is an integer number (110565).

2^1662222 is an apocalyptic number.

1662222 is an abundant number, since it is smaller than the sum of its proper divisors (1875858).

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

1662222 is a wasteful number, since it uses less digits than its factorization.

1662222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308.

The product of its digits is 576, while the sum is 21.

The square root of 1662222 is about 1289.2718875396. The cubic root of 1662222 is about 118.4576216210.

Adding to 1662222 its reverse (2222661), we get a palindrome (3884883).

The spelling of 1662222 in words is "one million, six hundred sixty-two thousand, two hundred twenty-two".