1130436 has 36 divisors (see below), whose sum is σ = 2965872. Its totient is φ = 376488.

The previous prime is 1130431. The next prime is 1130447. The reversal of 1130436 is 6340311.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×1130436³ = 4333703489124965568, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1130431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 391 + ... + 1553.

2^1130436 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 1130436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1482936).

1130436 is an abundant number, since it is smaller than the sum of its proper divisors (1835436).

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

1130436 is a wasteful number, since it uses less digits than its factorization.

1130436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1130436 is about 1063.2196386448. The cubic root of 1130436 is about 104.1714381459.

Adding to 1130436 its reverse (6340311), we get a palindrome (7470747).

The spelling of 1130436 in words is "one million, one hundred thirty thousand, four hundred thirty-six".