770320320 has 448 divisors, whose sum is σ = 3233903616. Its totient is φ = 150405120.

The previous prime is 770320307. The next prime is 770320349. The reversal of 770320320 is 23023077.

770320320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1256334 + ... + 1256946.

Almost surely, 2^770320320 is an apocalyptic number.

770320320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 770320320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1616951808).

770320320 is an abundant number, since it is smaller than the sum of its proper divisors (2463583296).

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

770320320 is a wasteful number, since it uses less digits than its factorization.

770320320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 770320320 is about 27754.6450166454. The cubic root of 770320320 is about 916.6927249158.

Adding to 770320320 its reverse (23023077), we get a palindrome (793343397).

The spelling of 770320320 in words is "seven hundred seventy million, three hundred twenty thousand, three hundred twenty".