194820 has 48 divisors (see below), whose sum is σ = 580608. Its totient is φ = 48640.

The previous prime is 194819. The next prime is 194827. The reversal of 194820 is 28491.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 194820.

It is not an unprimeable number, because it can be changed into a prime (194827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 925 + ... + 1115.

It is an arithmetic number, because the mean of its divisors is an integer number (12096).

2¹⁹⁴⁸²⁰ is an apocalyptic number.

194820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290304).

194820 is an abundant number, since it is smaller than the sum of its proper divisors (385788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

194820 is a wasteful number, since it uses less digits than its factorization.

194820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 194820 is about 441.3841863955. The cubic root of 194820 is about 57.9710517451.

The spelling of 194820 in words is "one hundred ninety-four thousand, eight hundred twenty".