765752420 has 24 divisors (see below), whose sum is σ = 1702673784. Its totient is φ = 288283136.

The previous prime is 765752419. The next prime is 765752441. The reversal of 765752420 is 24257567.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 239692324 + 526060096 = 15482^2 + 22936^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1125767 + ... + 1126446.

It is an arithmetic number, because the mean of its divisors is an integer number (70944741).

Almost surely, 2^765752420 is an apocalyptic number.

It is an amenable number.

765752420 is an abundant number, since it is smaller than the sum of its proper divisors (936921364).

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

765752420 is a wasteful number, since it uses less digits than its factorization.

765752420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252239 (or 2252237 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 765752420 is about 27672.2319302220. The cubic root of 765752420 is about 914.8771750290.

The spelling of 765752420 in words is "seven hundred sixty-five million, seven hundred fifty-two thousand, four hundred twenty".