1822688 has 48 divisors (see below), whose sum is σ = 4193280. Its totient is φ = 763776.

The previous prime is 1822673. The next prime is 1822693. The reversal of 1822688 is 8862281.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17645 + ... + 17747.

It is an arithmetic number, because the mean of its divisors is an integer number (87360).

2^1822688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1822688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2096640).

1822688 is an abundant number, since it is smaller than the sum of its proper divisors (2370592).

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

1822688 is a wasteful number, since it uses less digits than its factorization.

1822688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 191 counting only the distinct ones).

The product of its digits is 12288, while the sum is 35.

The square root of 1822688 is about 1350.0696278341. The cubic root of 1822688 is about 122.1529926889.

The spelling of 1822688 in words is "one million, eight hundred twenty-two thousand, six hundred eighty-eight".