188905652 has 24 divisors (see below), whose sum is σ = 368293800. Its totient is φ = 84180096.

The previous prime is 188905637. The next prime is 188905663. The reversal of 188905652 is 256509881.

It can be written as a sum of positive squares in 4 ways, for example, as 16613776 + 172291876 = 4076^2 + 13126^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 61127 + ... + 64142.

It is an arithmetic number, because the mean of its divisors is an integer number (15345575).

Almost surely, 2^188905652 is an apocalyptic number.

It is an amenable number.

188905652 is a deficient number, since it is larger than the sum of its proper divisors (179388148).

188905652 is a wasteful number, since it uses less digits than its factorization.

188905652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125315 (or 125313 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 44.

The square root of 188905652 is about 13744.2952529404. The cubic root of 188905652 is about 573.7838462225.

It can be divided in two parts, 18890 and 5652, that added together give a palindrome (24542).

The spelling of 188905652 in words is "one hundred eighty-eight million, nine hundred five thousand, six hundred fifty-two".