194997600 has 432 divisors, whose sum is σ = 811635552. Its totient is φ = 43130880.

The previous prime is 194997587. The next prime is 194997601. The reversal of 194997600 is 6799491.

194997600 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194997601) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2671164 + ... + 2671236.

It is an arithmetic number, because the mean of its divisors is an integer number (1878786).

Almost surely, 2^194997600 is an apocalyptic number.

194997600 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 194997600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405817776).

194997600 is an abundant number, since it is smaller than the sum of its proper divisors (616637952).

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

194997600 is a wasteful number, since it uses less digits than its factorization.

194997600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 194997600 is about 13964.1541097196. The cubic root of 194997600 is about 579.8866207233.

The spelling of 194997600 in words is "one hundred ninety-four million, nine hundred ninety-seven thousand, six hundred".