1648222 has 8 divisors (see below), whose sum is σ = 2482272. Its totient is φ = 820800.

The previous prime is 1648217. The next prime is 1648223. The reversal of 1648222 is 2228461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1648222² = 5433271522568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648223) 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 3 ways as a sum of consecutive naturals, for example, 979 + ... + 2062.

It is an arithmetic number, because the mean of its divisors is an integer number (310284).

2^1648222 is an apocalyptic number.

1648222 is a deficient number, since it is larger than the sum of its proper divisors (834050).

1648222 is a wasteful number, since it uses less digits than its factorization.

1648222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314.

The product of its digits is 1536, while the sum is 25.

The square root of 1648222 is about 1283.8309857610. The cubic root of 1648222 is about 118.1241153130.

The spelling of 1648222 in words is "one million, six hundred forty-eight thousand, two hundred twenty-two".