1188234648 has 48 divisors (see below), whose sum is σ = 3358059120. Its totient is φ = 378856896.

The previous prime is 1188234643. The next prime is 1188234731. The reversal of 1188234648 is 8464328811.

1188234648 is a `hidden beast` number, since 1 + 188 + 2 + 3 + 464 + 8 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1188234643) 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 11 ways as a sum of consecutive naturals, for example, 357111 + ... + 360422.

It is an arithmetic number, because the mean of its divisors is an integer number (69959565).

Almost surely, 2^1188234648 is an apocalyptic number.

1188234648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1188234648 is an abundant number, since it is smaller than the sum of its proper divisors (2169824472).

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

1188234648 is a wasteful number, since it uses less digits than its factorization.

1188234648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717568 (or 717561 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The square root of 1188234648 is about 34470.7796256482. The cubic root of 1188234648 is about 1059.1742257361.

The spelling of 1188234648 in words is "one billion, one hundred eighty-eight million, two hundred thirty-four thousand, six hundred forty-eight".