194400001 has 8 divisors (see below), whose sum is σ = 204934400. Its totient is φ = 183895920.

The previous prime is 194399987. The next prime is 194400023. The reversal of 194400001 is 100004491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 194400001 - 2⁵ = 194399969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194100001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6256 + ... + 20686.

It is an arithmetic number, because the mean of its divisors is an integer number (25616800).

Almost surely, 2^194400001 is an apocalyptic number.

It is an amenable number.

194400001 is a deficient number, since it is larger than the sum of its proper divisors (10534399).

194400001 is a wasteful number, since it uses less digits than its factorization.

194400001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15159.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 194400001 is about 13942.7400822077. The cubic root of 194400001 is about 579.2936317567.

Adding to 194400001 its reverse (100004491), we get a palindrome (294404492).

The spelling of 194400001 in words is "one hundred ninety-four million, four hundred thousand, one".