780160320 has 168 divisors, whose sum is σ = 2776255560. Its totient is φ = 200847360.

The previous prime is 780160279. The next prime is 780160331. The reversal of 780160320 is 23061087.

It can be written as a sum of positive squares in 4 ways, for example, as 40755456 + 739404864 = 6384^2 + 27192^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78850 + ... + 88190.

Almost surely, 2^780160320 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 780160320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1388127780).

780160320 is an abundant number, since it is smaller than the sum of its proper divisors (1996095240).

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

780160320 is a wasteful number, since it uses less digits than its factorization.

780160320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9393 (or 9380 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 780160320 is about 27931.3501284847. The cubic root of 780160320 is about 920.5794711066.

It can be divided in two parts, 7801 and 60320, that added together give a square (68121 = 261²).

The spelling of 780160320 in words is "seven hundred eighty million, one hundred sixty thousand, three hundred twenty".