201430806 has 8 divisors (see below), whose sum is σ = 402861624. Its totient is φ = 67143600.

The previous prime is 201430787. The next prime is 201430921. The reversal of 201430806 is 608034102.

It is a happy number.

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

201430806 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16785895 + ... + 16785906.

It is an arithmetic number, because the mean of its divisors is an integer number (50357703).

Almost surely, 2^201430806 is an apocalyptic number.

201430806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

201430806 is a wasteful number, since it uses less digits than its factorization.

201430806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33571806.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 201430806 is about 14192.6321026087. The cubic root of 201430806 is about 586.1948025797.

Adding to 201430806 its reverse (608034102), we get a palindrome (809464908).

The spelling of 201430806 in words is "two hundred one million, four hundred thirty thousand, eight hundred six".