1187278848 has 312 divisors, whose sum is σ = 4048057728. Its totient is φ = 328237056.

The previous prime is 1187278847. The next prime is 1187278867. The reversal of 1187278848 is 8488727811.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1187278794 and 1187278803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187278847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11096011 + ... + 11096117.

It is an arithmetic number, because the mean of its divisors is an integer number (12974544).

Almost surely, 2^1187278848 is an apocalyptic number.

1187278848 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 1187278848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2024028864).

1187278848 is an abundant number, since it is smaller than the sum of its proper divisors (2860778880).

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

1187278848 is a wasteful number, since it uses less digits than its factorization.

1187278848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 162 counting only the distinct ones).

The product of its digits is 1605632, while the sum is 54.

The square root of 1187278848 is about 34456.9129203415. The cubic root of 1187278848 is about 1058.8901543784.

The spelling of 1187278848 in words is "one billion, one hundred eighty-seven million, two hundred seventy-eight thousand, eight hundred forty-eight".