4201806 has 16 divisors (see below), whose sum is σ = 9604224. Its totient is φ = 1200504.

The previous prime is 4201789. The next prime is 4201811. The reversal of 4201806 is 6081024.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49980 + ... + 50063.

It is an arithmetic number, because the mean of its divisors is an integer number (600264).

Almost surely, 2^4201806 is an apocalyptic number.

4201806 is an abundant number, since it is smaller than the sum of its proper divisors (5402418).

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

4201806 is a wasteful number, since it uses less digits than its factorization.

4201806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100055.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 4201806 is about 2049.8307247185. The cubic root of 4201806 is about 161.3659870991.

The spelling of 4201806 in words is "four million, two hundred one thousand, eight hundred six".