1165803424 has 48 divisors (see below), whose sum is σ = 2455350408. Its totient is φ = 542932992.

The previous prime is 1165803421. The next prime is 1165803427. The reversal of 1165803424 is 4243085611.

It is an interprime number because it is at equal distance from previous prime (1165803421) and next prime (1165803427).

It can be written as a sum of positive squares in 4 ways, for example, as 1164993424 + 810000 = 34132^2 + 900^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 1165803424.

It is not an unprimeable number, because it can be changed into a prime (1165803421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41722 + ... + 63814.

Almost surely, 2^1165803424 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 1165803424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1227675204).

1165803424 is an abundant number, since it is smaller than the sum of its proper divisors (1289546984).

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

1165803424 is a wasteful number, since it uses less digits than its factorization.

1165803424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22217 (or 22209 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 1165803424 is about 34143.8636360913. The cubic root of 1165803424 is about 1052.4668902533.

The spelling of 1165803424 in words is "one billion, one hundred sixty-five million, eight hundred three thousand, four hundred twenty-four".