220001859 has 128 divisors (see below), whose sum is σ = 435456000. Its totient is φ = 106444800.

The previous prime is 220001857. The next prime is 220001869. The reversal of 220001859 is 958100022.

It is not a de Polignac number, because 220001859 - 2¹ = 220001857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (220001857) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2471887 + ... + 2471975.

It is an arithmetic number, because the mean of its divisors is an integer number (3402000).

Almost surely, 2^220001859 is an apocalyptic number.

220001859 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

220001859 is a deficient number, since it is larger than the sum of its proper divisors (215454141).

220001859 is a wasteful number, since it uses less digits than its factorization.

220001859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 220001859 is about 14832.4596409362. The cubic root of 220001859 is about 603.6827740433.

The spelling of 220001859 in words is "two hundred twenty million, one thousand, eight hundred fifty-nine".