1165030420 has 24 divisors (see below), whose sum is σ = 2458991304. Its totient is φ = 463645056.

The previous prime is 1165030403. The next prime is 1165030421. The reversal of 1165030420 is 240305611.

It can be written as a sum of positive squares in 4 ways, for example, as 75238276 + 1089792144 = 8674^2 + 33012^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1165030391 and 1165030400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165030421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143907 + ... + 151786.

It is an arithmetic number, because the mean of its divisors is an integer number (102457971).

Almost surely, 2^1165030420 is an apocalyptic number.

1165030420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165030420 is an abundant number, since it is smaller than the sum of its proper divisors (1293960884).

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

1165030420 is a wasteful number, since it uses less digits than its factorization.

1165030420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295899 (or 295897 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1165030420 is about 34132.5419504613. The cubic root of 1165030420 is about 1052.2342206682.

The spelling of 1165030420 in words is "one billion, one hundred sixty-five million, thirty thousand, four hundred twenty".