188487648 has 60 divisors (see below), whose sum is σ = 554344560. Its totient is φ = 62828352.

The previous prime is 188487641. The next prime is 188487703. The reversal of 188487648 is 846784881.

188487648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 188487594 and 188487603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188487641) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 33768 + ... + 38951.

It is an arithmetic number, because the mean of its divisors is an integer number (9239076).

Almost surely, 2^188487648 is an apocalyptic number.

188487648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

188487648 is an abundant number, since it is smaller than the sum of its proper divisors (365856912).

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

188487648 is an equidigital number, since it uses as much as digits as its factorization.

188487648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72741 (or 72724 counting only the distinct ones).

The product of its digits is 2752512, while the sum is 54.

The square root of 188487648 is about 13729.0803770682. The cubic root of 188487648 is about 573.3603172205.

The spelling of 188487648 in words is "one hundred eighty-eight million, four hundred eighty-seven thousand, six hundred forty-eight".