1089522 has 24 divisors (see below), whose sum is σ = 2698176. Its totient is φ = 311256.

The previous prime is 1089509. The next prime is 1089523. The reversal of 1089522 is 2259801.

It is not an unprimeable number, because it can be changed into a prime (1089523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4198 + ... + 4449.

It is an arithmetic number, because the mean of its divisors is an integer number (112424).

2^1089522 is an apocalyptic number.

1089522 is an abundant number, since it is smaller than the sum of its proper divisors (1608654).

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

1089522 is a wasteful number, since it uses less digits than its factorization.

1089522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8662 (or 8659 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1089522 is about 1043.8017053061. The cubic root of 1089522 is about 102.8992007236.

The spelling of 1089522 in words is "one million, eighty-nine thousand, five hundred twenty-two".