188001441 has 24 divisors (see below), whose sum is σ = 283459176. Its totient is φ = 119957760.

The previous prime is 188001439. The next prime is 188001467. The reversal of 188001441 is 144100881.

It can be written as a sum of positive squares in 4 ways, for example, as 57699216 + 130302225 = 7596^2 + 11415^2 .

It is not a de Polignac number, because 188001441 - 2¹ = 188001439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (188001431) 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 23 ways as a sum of consecutive naturals, for example, 14751 + ... + 24363.

It is an arithmetic number, because the mean of its divisors is an integer number (11810799).

Almost surely, 2^188001441 is an apocalyptic number.

It is an amenable number.

188001441 is a deficient number, since it is larger than the sum of its proper divisors (95457735).

188001441 is a wasteful number, since it uses less digits than its factorization.

188001441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9713 (or 9710 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 188001441 is about 13711.3617485646. The cubic root of 188001441 is about 572.8668952454.

The spelling of 188001441 in words is "one hundred eighty-eight million, one thousand, four hundred forty-one".