194970 has 32 divisors (see below), whose sum is σ = 479808. Its totient is φ = 50688.

The previous prime is 194963. The next prime is 194977. The reversal of 194970 is 79491.

It is an interprime number because it is at equal distance from previous prime (194963) and next prime (194977).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (194977) by changing a digit.

194970 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 15 ways as a sum of consecutive naturals, for example, 1962 + ... + 2058.

It is an arithmetic number, because the mean of its divisors is an integer number (14994).

2¹⁹⁴⁹⁷⁰ is an apocalyptic number.

194970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 194970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239904).

194970 is an abundant number, since it is smaller than the sum of its proper divisors (284838).

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

194970 is a wasteful number, since it uses less digits than its factorization.

194970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 194970 is about 441.5540736988. The cubic root of 194970 is about 57.9859260342.

Adding to 194970 its sum of digits (30), we get a triangular number (195000 = T₆₂₄).

The spelling of 194970 in words is "one hundred ninety-four thousand, nine hundred seventy".