19200001 has 8 divisors (see below), whose sum is σ = 19993320. Its totient is φ = 18415488.

The previous prime is 19199981. The next prime is 19200007. The reversal of 19200001 is 10000291.

It can be written as a sum of positive squares in 4 ways, for example, as 4752400 + 14447601 = 2180^2 + 3801^2 .

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 19200001 - 2⁵ = 19199969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19200007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2445 + ... + 6661.

It is an arithmetic number, because the mean of its divisors is an integer number (2499165).

Almost surely, 2^19200001 is an apocalyptic number.

It is an amenable number.

19200001 is a deficient number, since it is larger than the sum of its proper divisors (793319).

19200001 is a wasteful number, since it uses less digits than its factorization.

19200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4403.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 19200001 is about 4381.7805741502. The cubic root of 19200001 is about 267.7731846817.

Adding to 19200001 its reverse (10000291), we get a palindrome (29200292).

The spelling of 19200001 in words is "nineteen million, two hundred thousand, one".