765047420 has 12 divisors (see below), whose sum is σ = 1606599624. Its totient is φ = 306018960.

The previous prime is 765047417. The next prime is 765047429. The reversal of 765047420 is 24740567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765047429) 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 3 ways as a sum of consecutive naturals, for example, 19126166 + ... + 19126205.

It is an arithmetic number, because the mean of its divisors is an integer number (133883302).

Almost surely, 2^765047420 is an apocalyptic number.

It is an amenable number.

765047420 is an abundant number, since it is smaller than the sum of its proper divisors (841552204).

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

765047420 is a wasteful number, since it uses less digits than its factorization.

765047420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38252380 (or 38252378 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 765047420 is about 27659.4905954539. The cubic root of 765047420 is about 914.5963242684.

Adding to 765047420 its reverse (24740567), we get a palindrome (789787987).

The spelling of 765047420 in words is "seven hundred sixty-five million, forty-seven thousand, four hundred twenty".