8438778348 has 96 divisors (see below), whose sum is σ = 26437608960. Its totient is φ = 2023280640.

The previous prime is 8438778347. The next prime is 8438778371.

It is a happy number.

8438778348 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 8438778291 and 8438778300.

It is not an unprimeable number, because it can be changed into a prime (8438778347) 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, 339253 + ... + 363276.

It is an arithmetic number, because the mean of its divisors is an integer number (275391760).

Almost surely, 2^8438778348 is an apocalyptic number.

It is an amenable number.

8438778348 is an abundant number, since it is smaller than the sum of its proper divisors (17998830612).

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

8438778348 is a wasteful number, since it uses less digits than its factorization.

8438778348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702567 (or 702565 counting only the distinct ones).

The product of its digits is 28901376, while the sum is 60.

The square root of 8438778348 is about 91862.8235359658. The cubic root of 8438778348 is about 2035.9160211900.

It can be divided in two parts, 84387 and 78348, that added together give a triangular number (162735 = T₅₇₀).

The spelling of 8438778348 in words is "eight billion, four hundred thirty-eight million, seven hundred seventy-eight thousand, three hundred forty-eight".