1130808 has 64 divisors (see below), whose sum is σ = 3317760. Its totient is φ = 314496.
The previous prime is 1130807. The next prime is 1130809. The reversal of 1130808 is 8080311.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (1130807) and next prime (1130809).
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1130803) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8841 + ... + 8967.
It is an arithmetic number, because the mean of its divisors is an integer number (51840).
21130808 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 1130808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1658880).
1130808 is an abundant number, since it is smaller than the sum of its proper divisors (2186952).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1130808 is a wasteful number, since it uses less digits than its factorization.
1130808 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 196 (or 192 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 21.
The square root of 1130808 is about 1063.3945645902. The cubic root of 1130808 is about 104.1828636858.
The spelling of 1130808 in words is "one million, one hundred thirty thousand, eight hundred eight".
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