1822284 has 48 divisors (see below), whose sum is σ = 4838400. Its totient is φ = 592848.

The previous prime is 1822277. The next prime is 1822307. The reversal of 1822284 is 4822281.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4897 + ... + 5255.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2^1822284 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 1822284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2419200).

1822284 is an abundant number, since it is smaller than the sum of its proper divisors (3016116).

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

1822284 is a wasteful number, since it uses less digits than its factorization.

1822284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 411 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 1822284 is about 1349.9199976295. The cubic root of 1822284 is about 122.1439669248.

The spelling of 1822284 in words is "one million, eight hundred twenty-two thousand, two hundred eighty-four".