19834201 has 4 divisors (see below), whose sum is σ = 20318004. Its totient is φ = 19350400.

The previous prime is 19834193. The next prime is 19834229. The reversal of 19834201 is 10243891.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1550025 + 18284176 = 1245^2 + 4276^2 .

It is a cyclic number.

It is not a de Polignac number, because 19834201 - 2³ = 19834193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19834201.

It is not an unprimeable number, because it can be changed into a prime (19834301) 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 3 ways as a sum of consecutive naturals, for example, 241840 + ... + 241921.

It is an arithmetic number, because the mean of its divisors is an integer number (5079501).

Almost surely, 2^19834201 is an apocalyptic number.

It is an amenable number.

19834201 is a deficient number, since it is larger than the sum of its proper divisors (483803).

19834201 is an equidigital number, since it uses as much as digits as its factorization.

19834201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483802.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 19834201 is about 4453.5604857238. The cubic root of 19834201 is about 270.6895998092.

The spelling of 19834201 in words is "nineteen million, eight hundred thirty-four thousand, two hundred one".