770384538 has 96 divisors (see below), whose sum is σ = 2097418752. Its totient is φ = 198525600.

The previous prime is 770384533. The next prime is 770384543. The reversal of 770384538 is 835483077.

It is an interprime number because it is at equal distance from previous prime (770384533) and next prime (770384543).

It is a junction number, because it is equal to n+sod(n) for n = 770384493 and 770384502.

It is not an unprimeable number, because it can be changed into a prime (770384533) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 179445 + ... + 183687.

It is an arithmetic number, because the mean of its divisors is an integer number (21848112).

Almost surely, 2^770384538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 770384538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1048709376).

770384538 is an abundant number, since it is smaller than the sum of its proper divisors (1327034214).

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

770384538 is a wasteful number, since it uses less digits than its factorization.

770384538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4400 (or 4397 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 770384538 is about 27755.8018799674. The cubic root of 770384538 is about 916.7181976688.

The spelling of 770384538 in words is "seven hundred seventy million, three hundred eighty-four thousand, five hundred thirty-eight".