4020850 has 48 divisors (see below), whose sum is σ = 8035200. Its totient is φ = 1494080.

The previous prime is 4020847. The next prime is 4020869. The reversal of 4020850 is 580204.

It is a happy number.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68121 + ... + 68179.

It is an arithmetic number, because the mean of its divisors is an integer number (167400).

Almost surely, 2^4020850 is an apocalyptic number.

4020850 is a deficient number, since it is larger than the sum of its proper divisors (4014350).

4020850 is a wasteful number, since it uses less digits than its factorization.

4020850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 4020850 is about 2005.2057251065. The cubic root of 4020850 is about 159.0154382910.

The spelling of 4020850 in words is "four million, twenty thousand, eight hundred fifty".