1099632 has 40 divisors (see below), whose sum is σ = 2936320. Its totient is φ = 354240.

The previous prime is 1099627. The next prime is 1099633. The reversal of 1099632 is 2369901.

1099632 is nontrivially palindromic in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 1099632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119 + ... + 1857.

It is an arithmetic number, because the mean of its divisors is an integer number (73408).

2^1099632 is an apocalyptic number.

1099632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1099632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1468160).

1099632 is an abundant number, since it is smaller than the sum of its proper divisors (1836688).

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

1099632 is a wasteful number, since it uses less digits than its factorization.

1099632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 1099632 is about 1048.6333963784. The cubic root of 1099632 is about 103.2164987743.

The spelling of 1099632 in words is "one million, ninety-nine thousand, six hundred thirty-two".