780968256 has 28 divisors (see below), whose sum is σ = 2066312352. Its totient is φ = 260322688.

The previous prime is 780968239. The next prime is 780968257. The reversal of 780968256 is 652869087.

It is a super-2 number, since 2×780968256² = 1219822833759363072, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 780968199 and 780968208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780968257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033580 + ... + 2033963.

Almost surely, 2^780968256 is an apocalyptic number.

It is an amenable number.

780968256 is an abundant number, since it is smaller than the sum of its proper divisors (1285344096).

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

780968256 is a wasteful number, since it uses less digits than its factorization.

780968256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067558 (or 4067548 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 780968256 is about 27945.8092743796. The cubic root of 780968256 is about 920.8971462794.

The spelling of 780968256 in words is "seven hundred eighty million, nine hundred sixty-eight thousand, two hundred fifty-six".