765229056 has 96 divisors (see below), whose sum is σ = 2075673600. Its totient is φ = 250634240.

The previous prime is 765229051. The next prime is 765229081. The reversal of 765229056 is 650922567.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×765229056² = 1171151016293302272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 765228999 and 765229017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765229051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361441 + ... + 363551.

It is an arithmetic number, because the mean of its divisors is an integer number (21621600).

Almost surely, 2^765229056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 765229056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1037836800).

765229056 is an abundant number, since it is smaller than the sum of its proper divisors (1310444544).

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

765229056 is a wasteful number, since it uses less digits than its factorization.

765229056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195 (or 2175 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 765229056 is about 27662.7738305471. The cubic root of 765229056 is about 914.6686990731.

The spelling of 765229056 in words is "seven hundred sixty-five million, two hundred twenty-nine thousand, fifty-six".