4020198205 has 8 divisors (see below), whose sum is σ = 4824618552. Its totient is φ = 3215904768.

The previous prime is 4020198197. The next prime is 4020198223. The reversal of 4020198205 is 5028910204.

It can be written as a sum of positive squares in 4 ways, for example, as 93045316 + 3927152889 = 9646^2 + 62667^2 .

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 4020198205 - 2³ = 4020198197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64509 + ... + 110461.

It is an arithmetic number, because the mean of its divisors is an integer number (603077319).

Almost surely, 2^4020198205 is an apocalyptic number.

It is an amenable number.

4020198205 is a deficient number, since it is larger than the sum of its proper divisors (804420347).

4020198205 is a wasteful number, since it uses less digits than its factorization.

4020198205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63455.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 4020198205 is about 63405.0329626915. The cubic root of 4020198205 is about 1590.0684549196.

The spelling of 4020198205 in words is "four billion, twenty million, one hundred ninety-eight thousand, two hundred five".