1005522 has 32 divisors (see below), whose sum is σ = 2332800. Its totient is φ = 283008.

The previous prime is 1005503. The next prime is 1005527. The reversal of 1005522 is 2255001.

It is a super-2 number, since 2×1005522² = 2022148984968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1005527) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3604 + ... + 3872.

It is an arithmetic number, because the mean of its divisors is an integer number (72900).

2^1005522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1005522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1166400).

1005522 is an abundant number, since it is smaller than the sum of its proper divisors (1327278).

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

1005522 is a wasteful number, since it uses less digits than its factorization.

1005522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 1005522 is about 1002.7571989270. The cubic root of 1005522 is about 100.1837288969.

The spelling of 1005522 in words is "one million, five thousand, five hundred twenty-two".