1165430420 has 48 divisors (see below), whose sum is σ = 3051312768. Its totient is φ = 363250560.

The previous prime is 1165430407. The next prime is 1165430429. The reversal of 1165430420 is 240345611.

It is a super-2 number, since 2×1165430420² = 2716456127722752800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1165430420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165430429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376847 + ... + 379926.

It is an arithmetic number, because the mean of its divisors is an integer number (63569016).

Almost surely, 2^1165430420 is an apocalyptic number.

1165430420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165430420 is an abundant number, since it is smaller than the sum of its proper divisors (1885882348).

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

1165430420 is a wasteful number, since it uses less digits than its factorization.

1165430420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756800 (or 756798 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1165430420 is about 34138.4009584515. The cubic root of 1165430420 is about 1052.3546311229.

The spelling of 1165430420 in words is "one billion, one hundred sixty-five million, four hundred thirty thousand, four hundred twenty".