190838 has 4 divisors (see below), whose sum is σ = 286260. Its totient is φ = 95418.

The previous prime is 190837. The next prime is 190843. The reversal of 190838 is 838091.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 190838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190837) 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 as a sum of consecutive naturals, namely, 47708 + ... + 47711.

It is an arithmetic number, because the mean of its divisors is an integer number (71565).

2¹⁹⁰⁸³⁸ is an apocalyptic number.

190838 is a deficient number, since it is larger than the sum of its proper divisors (95422).

190838 is an equidigital number, since it uses as much as digits as its factorization.

190838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95421.

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

The square root of 190838 is about 436.8500887032. The cubic root of 190838 is about 57.5733657083.

It can be divided in two parts, 19083 and 8, that added together give a palindrome (19091).

The spelling of 190838 in words is "one hundred ninety thousand, eight hundred thirty-eight".