778470588 has 240 divisors, whose sum is σ = 2432855040. Its totient is φ = 212471424.

The previous prime is 778470587. The next prime is 778470599. The reversal of 778470588 is 885074877.

778470588 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (778470587) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7141878 + ... + 7141986.

It is an arithmetic number, because the mean of its divisors is an integer number (10136896).

Almost surely, 2^778470588 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 778470588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1216427520).

778470588 is an abundant number, since it is smaller than the sum of its proper divisors (1654384452).

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

778470588 is a wasteful number, since it uses less digits than its factorization.

778470588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 3512320, while the sum is 54.

The square root of 778470588 is about 27901.0857853238. The cubic root of 778470588 is about 919.9143697869.

The spelling of 778470588 in words is "seven hundred seventy-eight million, four hundred seventy thousand, five hundred eighty-eight".