188442023 has 16 divisors (see below), whose sum is σ = 238256640. Its totient is φ = 144765600.

The previous prime is 188442017. The next prime is 188442031. The reversal of 188442023 is 320244881.

It is not a de Polignac number, because 188442023 - 2⁶ = 188441959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188442523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11768 + ... + 22701.

It is an arithmetic number, because the mean of its divisors is an integer number (14891040).

Almost surely, 2^188442023 is an apocalyptic number.

188442023 is a deficient number, since it is larger than the sum of its proper divisors (49814617).

188442023 is a wasteful number, since it uses less digits than its factorization.

188442023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34558.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 188442023 is about 13727.4186575627. The cubic root of 188442023 is about 573.3140512790.

Subtracting from 188442023 its sum of digits (32), we obtain a triangular number (188441991 = T₁₉₄₁₃).

The spelling of 188442023 in words is "one hundred eighty-eight million, four hundred forty-two thousand, twenty-three".