788765380 has 96 divisors (see below), whose sum is σ = 1858818528. Its totient is φ = 279244800.

The previous prime is 788765363. The next prime is 788765389. The reversal of 788765380 is 83567887.

It can be written as a sum of positive squares in 16 ways, for example, as 787700356 + 1065024 = 28066^2 + 1032^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (788765389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 649654 + ... + 650866.

It is an arithmetic number, because the mean of its divisors is an integer number (19362693).

Almost surely, 2^788765380 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 788765380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (929409264).

788765380 is an abundant number, since it is smaller than the sum of its proper divisors (1070053148).

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

788765380 is a wasteful number, since it uses less digits than its factorization.

788765380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337 (or 1335 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 52.

The square root of 788765380 is about 28084.9671532655. The cubic root of 788765380 is about 923.9517240821.

The spelling of 788765380 in words is "seven hundred eighty-eight million, seven hundred sixty-five thousand, three hundred eighty".