1099530 has 48 divisors (see below), whose sum is σ = 3013920. Its totient is φ = 277344.

The previous prime is 1099523. The next prime is 1099541. The reversal of 1099530 is 359901.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1099494 and 1099503.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1389 + ... + 2031.

It is an arithmetic number, because the mean of its divisors is an integer number (62790).

2^1099530 is an apocalyptic number.

1099530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1099530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1506960).

1099530 is an abundant number, since it is smaller than the sum of its proper divisors (1914390).

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

1099530 is a wasteful number, since it uses less digits than its factorization.

1099530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 1099530 is about 1048.5847605225. The cubic root of 1099530 is about 103.2133072799.

It can be divided in two parts, 10995 and 30, that added together give a square (11025 = 105²).

The spelling of 1099530 in words is "one million, ninety-nine thousand, five hundred thirty".