765580280 has 32 divisors (see below), whose sum is σ = 1781956800. Its totient is φ = 295671936.

The previous prime is 765580259. The next prime is 765580289. The reversal of 765580280 is 82085567.

It is a super-2 number, since 2×765580280² = 1172226330249756800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765580289) 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, 328832 + ... + 331151.

It is an arithmetic number, because the mean of its divisors is an integer number (55686150).

Almost surely, 2^765580280 is an apocalyptic number.

It is an amenable number.

765580280 is an abundant number, since it is smaller than the sum of its proper divisors (1016376520).

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

765580280 is a wasteful number, since it uses less digits than its factorization.

765580280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660023 (or 660019 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 765580280 is about 27669.1214172044. The cubic root of 765580280 is about 914.8086155506.

The spelling of 765580280 in words is "seven hundred sixty-five million, five hundred eighty thousand, two hundred eighty".