220001885 has 16 divisors (see below), whose sum is σ = 273077760. Its totient is φ = 169974720.

The previous prime is 220001869. The next prime is 220001897. The reversal of 220001885 is 588100022.

It is not a de Polignac number, because 220001885 - 2⁴ = 220001869 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94799 + ... + 97091.

It is an arithmetic number, because the mean of its divisors is an integer number (17067360).

Almost surely, 2^220001885 is an apocalyptic number.

It is an amenable number.

220001885 is a deficient number, since it is larger than the sum of its proper divisors (53075875).

220001885 is a wasteful number, since it uses less digits than its factorization.

220001885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2948.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 220001885 is about 14832.4605173923. The cubic root of 220001885 is about 603.6827978246.

The spelling of 220001885 in words is "two hundred twenty million, one thousand, eight hundred eighty-five".