190388 has 12 divisors (see below), whose sum is σ = 363552. Its totient is φ = 86520.

The previous prime is 190387. The next prime is 190391. The reversal of 190388 is 883091.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 190388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2120 + ... + 2207.

It is an arithmetic number, because the mean of its divisors is an integer number (30296).

2¹⁹⁰³⁸⁸ is an apocalyptic number.

It is an amenable number.

190388 is a deficient number, since it is larger than the sum of its proper divisors (173164).

190388 is a wasteful number, since it uses less digits than its factorization.

190388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4342 (or 4340 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 190388 is about 436.3347338913. The cubic root of 190388 is about 57.5280770251.

It can be divided in two parts, 1903 and 88, that added together give a palindrome (1991).

The spelling of 190388 in words is "one hundred ninety thousand, three hundred eighty-eight".