4200081 has 8 divisors (see below), whose sum is σ = 5736864. Its totient is φ = 2731680.

The previous prime is 4200073. The next prime is 4200103. The reversal of 4200081 is 1800024.

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

It is not a de Polignac number, because 4200081 - 2³ = 4200073 is a prime.

It is a super-2 number, since 2×4200081² = 35281360813122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4200081.

It is not an unprimeable number, because it can be changed into a prime (4200481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16951 + ... + 17196.

It is an arithmetic number, because the mean of its divisors is an integer number (717108).

Almost surely, 2^4200081 is an apocalyptic number.

4200081 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4200081 is a deficient number, since it is larger than the sum of its proper divisors (1536783).

4200081 is a wasteful number, since it uses less digits than its factorization.

4200081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34191.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 4200081 is about 2049.4099150731. The cubic root of 4200081 is about 161.3439017999.

The spelling of 4200081 in words is "four million, two hundred thousand, eighty-one".