765590130 has 80 divisors (see below), whose sum is σ = 2108887704. Its totient is φ = 199169280.

The previous prime is 765590093. The next prime is 765590131. The reversal of 765590130 is 31095567.

It is a happy number.

765590130 is a `hidden beast` number, since 7 + 65 + 590 + 1 + 3 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 517244049 + 248346081 = 22743^2 + 15759^2 .

It is a super-2 number, since 2×765590130² = 1172256494306833800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (765590131) 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 39 ways as a sum of consecutive naturals, for example, 21684 + ... + 44736.

Almost surely, 2^765590130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 765590130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1054443852).

765590130 is an abundant number, since it is smaller than the sum of its proper divisors (1343297574).

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

765590130 is a wasteful number, since it uses less digits than its factorization.

765590130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23113 (or 23104 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 765590130 is about 27669.2994128872. The cubic root of 765590130 is about 914.8125388606.

The spelling of 765590130 in words is "seven hundred sixty-five million, five hundred ninety thousand, one hundred thirty".