765303240 has 64 divisors (see below), whose sum is σ = 2472523200. Its totient is φ = 188381952.

The previous prime is 765303233. The next prime is 765303241. The reversal of 765303240 is 42303567.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 765303198 and 765303207.

It is not an unprimeable number, because it can be changed into a prime (765303241) 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, 243730 + ... + 246849.

It is an arithmetic number, because the mean of its divisors is an integer number (38633175).

Almost surely, 2^765303240 is an apocalyptic number.

It is an amenable number.

765303240 is an abundant number, since it is smaller than the sum of its proper divisors (1707219960).

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

765303240 is a wasteful number, since it uses less digits than its factorization.

765303240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490606 (or 490602 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 765303240 is about 27664.1146614165. The cubic root of 765303240 is about 914.6982551864.

The spelling of 765303240 in words is "seven hundred sixty-five million, three hundred three thousand, two hundred forty".