194819800 has 96 divisors (see below), whose sum is σ = 531796320. Its totient is φ = 64972800.

The previous prime is 194819783. The next prime is 194819803. The reversal of 194819800 is 8918491.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194819803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49920 + ... + 53680.

It is an arithmetic number, because the mean of its divisors is an integer number (5539545).

Almost surely, 2^194819800 is an apocalyptic number.

194819800 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 194819800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265898160).

194819800 is an abundant number, since it is smaller than the sum of its proper divisors (336976520).

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

194819800 is a wasteful number, since it uses less digits than its factorization.

194819800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821 (or 3812 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 194819800 is about 13957.7863574422. The cubic root of 194819800 is about 579.7103190766.

The spelling of 194819800 in words is "one hundred ninety-four million, eight hundred nineteen thousand, eight hundred".