770270720 has 80 divisors (see below), whose sum is σ = 1857604320. Its totient is φ = 306315264.

The previous prime is 770270719. The next prime is 770270723. The reversal of 770270720 is 27072077.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770270723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493301 + ... + 494859.

It is an arithmetic number, because the mean of its divisors is an integer number (23220054).

Almost surely, 2^770270720 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 770270720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (928802160).

770270720 is an abundant number, since it is smaller than the sum of its proper divisors (1087333600).

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

770270720 is a wasteful number, since it uses less digits than its factorization.

770270720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775 (or 1759 counting only the distinct ones).

The product of its (nonzero) digits is 9604, while the sum is 32.

The square root of 770270720 is about 27753.7514581362. The cubic root of 770270720 is about 916.6730495791.

The spelling of 770270720 in words is "seven hundred seventy million, two hundred seventy thousand, seven hundred twenty".