188381652 has 48 divisors (see below), whose sum is σ = 453136320. Its totient is φ = 60867072.

The previous prime is 188381629. The next prime is 188381717. The reversal of 188381652 is 256183881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148999 + ... + 150257.

It is an arithmetic number, because the mean of its divisors is an integer number (9440340).

Almost surely, 2^188381652 is an apocalyptic number.

188381652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

188381652 is an abundant number, since it is smaller than the sum of its proper divisors (264754668).

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

188381652 is a wasteful number, since it uses less digits than its factorization.

188381652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1638 counting only the distinct ones).

The product of its digits is 92160, while the sum is 42.

The square root of 188381652 is about 13725.2195610854. The cubic root of 188381652 is about 573.2528207055.

The spelling of 188381652 in words is "one hundred eighty-eight million, three hundred eighty-one thousand, six hundred fifty-two".