1178480808 has 72 divisors (see below), whose sum is σ = 3336630570. Its totient is φ = 375735360.

The previous prime is 1178480803. The next prime is 1178480819. The reversal of 1178480808 is 8080848711.

It can be written as a sum of positive squares in only one way, i.e., 1087812324 + 90668484 = 32982^2 + 9522^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (1178480803) 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 17 ways as a sum of consecutive naturals, for example, 22618 + ... + 53558.

Almost surely, 2^1178480808 is an apocalyptic number.

1178480808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1178480808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1668315285).

1178480808 is an abundant number, since it is smaller than the sum of its proper divisors (2158149762).

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

1178480808 is a wasteful number, since it uses less digits than its factorization.

1178480808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30999 (or 30969 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 45.

The square root of 1178480808 is about 34329.0082583229. The cubic root of 1178480808 is about 1056.2681180417.

The spelling of 1178480808 in words is "one billion, one hundred seventy-eight million, four hundred eighty thousand, eight hundred eight".